drivers/net/sfc/sfc_mae.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  *
   3  * Copyright(c) 2019-2021 Xilinx, Inc.
   4  * Copyright(c) 2019 Solarflare Communications Inc.
   5  *
   6  * This software was jointly developed between OKTET Labs (under contract
   7  * for Solarflare) and Solarflare Communications, Inc.
   8  */
   9
  10 #include <stdbool.h>
  11
  12 #include <rte_bitops.h>
  13 #include <rte_common.h>
  14 #include <rte_vxlan.h>
  15
  16 #include "efx.h"
  17
  18 #include "sfc.h"
  19 #include "sfc_flow_tunnel.h"
  20 #include "sfc_mae_counter.h"
  21 #include "sfc_log.h"
  22 #include "sfc_switch.h"
  23 #include "sfc_service.h"
  24
  25 static int
  26 sfc_mae_assign_ethdev_mport(struct sfc_adapter *sa,
  27                             efx_mport_sel_t *mportp)
  28 {
  29         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
  30
  31         return efx_mae_mport_by_pcie_function(encp->enc_pf, encp->enc_vf,
  32                                               mportp);
  33 }
  34
  35 static int
  36 sfc_mae_assign_entity_mport(struct sfc_adapter *sa,
  37                             efx_mport_sel_t *mportp)
  38 {
  39         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
  40         int rc = 0;
  41
  42         if (encp->enc_mae_admin) {
  43                 /*
  44                  * This ethdev sits on MAE admin PF. The represented
  45                  * entity is the network port assigned to that PF.
  46                  */
  47                 rc = efx_mae_mport_by_phy_port(encp->enc_assigned_port, mportp);
  48         } else {
  49                 /*
  50                  * This ethdev sits on unprivileged PF / VF. The entity
  51                  * represented by the ethdev can change dynamically
  52                  * as MAE admin changes default traffic rules.
  53                  *
  54                  * For the sake of simplicity, do not fill in the m-port
  55                  * and assume that flow rules should not be allowed to
  56                  * reference the entity represented by this ethdev.
  57                  */
  58                 efx_mae_mport_invalid(mportp);
  59         }
  60
  61         return rc;
  62 }
  63
  64 static int
  65 sfc_mae_counter_registry_init(struct sfc_mae_counter_registry *registry,
  66                               uint32_t nb_counters_max)
  67 {
  68         return sfc_mae_counters_init(&registry->counters, nb_counters_max);
  69 }
  70
  71 static void
  72 sfc_mae_counter_registry_fini(struct sfc_mae_counter_registry *registry)
  73 {
  74         sfc_mae_counters_fini(&registry->counters);
  75 }
  76
  77 static int
  78 sfc_mae_internal_rule_find_empty_slot(struct sfc_adapter *sa,
  79                                       struct sfc_mae_rule **rule)
  80 {
  81         struct sfc_mae *mae = &sa->mae;
  82         struct sfc_mae_internal_rules *internal_rules = &mae->internal_rules;
  83         unsigned int entry;
  84         int rc;
  85
  86         for (entry = 0; entry < SFC_MAE_NB_RULES_MAX; entry++) {
  87                 if (internal_rules->rules[entry].spec == NULL)
  88                         break;
  89         }
  90
  91         if (entry == SFC_MAE_NB_RULES_MAX) {
  92                 rc = ENOSPC;
  93                 sfc_err(sa, "failed too many rules (%u rules used)", entry);
  94                 goto fail_too_many_rules;
  95         }
  96
  97         *rule = &internal_rules->rules[entry];
  98
  99         return 0;
 100
 101 fail_too_many_rules:
 102         return rc;
 103 }
 104
 105 int
 106 sfc_mae_rule_add_mport_match_deliver(struct sfc_adapter *sa,
 107                                      const efx_mport_sel_t *mport_match,
 108                                      const efx_mport_sel_t *mport_deliver,
 109                                      int prio, struct sfc_mae_rule **rulep)
 110 {
 111         struct sfc_mae *mae = &sa->mae;
 112         struct sfc_mae_rule *rule;
 113         int rc;
 114
 115         sfc_log_init(sa, "entry");
 116
 117         if (prio > 0 && (unsigned int)prio >= mae->nb_action_rule_prios_max) {
 118                 rc = EINVAL;
 119                 sfc_err(sa, "failed: invalid priority %d (max %u)", prio,
 120                         mae->nb_action_rule_prios_max);
 121                 goto fail_invalid_prio;
 122         }
 123         if (prio < 0)
 124                 prio = mae->nb_action_rule_prios_max - 1;
 125
 126         rc = sfc_mae_internal_rule_find_empty_slot(sa, &rule);
 127         if (rc != 0)
 128                 goto fail_find_empty_slot;
 129
 130         sfc_log_init(sa, "init MAE match spec");
 131         rc = efx_mae_match_spec_init(sa->nic, EFX_MAE_RULE_ACTION,
 132                                      (uint32_t)prio, &rule->spec);
 133         if (rc != 0) {
 134                 sfc_err(sa, "failed to init MAE match spec");
 135                 goto fail_match_init;
 136         }
 137
 138         rc = efx_mae_match_spec_mport_set(rule->spec, mport_match, NULL);
 139         if (rc != 0) {
 140                 sfc_err(sa, "failed to get MAE match mport selector");
 141                 goto fail_mport_set;
 142         }
 143
 144         rc = efx_mae_action_set_spec_init(sa->nic, &rule->actions);
 145         if (rc != 0) {
 146                 sfc_err(sa, "failed to init MAE action set");
 147                 goto fail_action_init;
 148         }
 149
 150         rc = efx_mae_action_set_populate_deliver(rule->actions,
 151                                                  mport_deliver);
 152         if (rc != 0) {
 153                 sfc_err(sa, "failed to populate deliver action");
 154                 goto fail_populate_deliver;
 155         }
 156
 157         rc = efx_mae_action_set_alloc(sa->nic, rule->actions,
 158                                       &rule->action_set);
 159         if (rc != 0) {
 160                 sfc_err(sa, "failed to allocate action set");
 161                 goto fail_action_set_alloc;
 162         }
 163
 164         rc = efx_mae_action_rule_insert(sa->nic, rule->spec, NULL,
 165                                         &rule->action_set,
 166                                         &rule->rule_id);
 167         if (rc != 0) {
 168                 sfc_err(sa, "failed to insert action rule");
 169                 goto fail_rule_insert;
 170         }
 171
 172         *rulep = rule;
 173
 174         sfc_log_init(sa, "done");
 175
 176         return 0;
 177
 178 fail_rule_insert:
 179         efx_mae_action_set_free(sa->nic, &rule->action_set);
 180
 181 fail_action_set_alloc:
 182 fail_populate_deliver:
 183         efx_mae_action_set_spec_fini(sa->nic, rule->actions);
 184
 185 fail_action_init:
 186 fail_mport_set:
 187         efx_mae_match_spec_fini(sa->nic, rule->spec);
 188
 189 fail_match_init:
 190 fail_find_empty_slot:
 191 fail_invalid_prio:
 192         sfc_log_init(sa, "failed: %s", rte_strerror(rc));
 193         return rc;
 194 }
 195
 196 void
 197 sfc_mae_rule_del(struct sfc_adapter *sa, struct sfc_mae_rule *rule)
 198 {
 199         if (rule == NULL || rule->spec == NULL)
 200                 return;
 201
 202         efx_mae_action_rule_remove(sa->nic, &rule->rule_id);
 203         efx_mae_action_set_free(sa->nic, &rule->action_set);
 204         efx_mae_action_set_spec_fini(sa->nic, rule->actions);
 205         efx_mae_match_spec_fini(sa->nic, rule->spec);
 206
 207         rule->spec = NULL;
 208 }
 209
 210 int
 211 sfc_mae_attach(struct sfc_adapter *sa)
 212 {
 213         struct sfc_adapter_shared * const sas = sfc_sa2shared(sa);
 214         struct sfc_mae_switch_port_request switch_port_request = {0};
 215         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
 216         efx_mport_sel_t ethdev_mport;
 217         efx_mport_sel_t entity_mport;
 218         struct sfc_mae *mae = &sa->mae;
 219         struct sfc_mae_bounce_eh *bounce_eh = &mae->bounce_eh;
 220         efx_mae_limits_t limits;
 221         int rc;
 222
 223         sfc_log_init(sa, "entry");
 224
 225         if (!encp->enc_mae_supported) {
 226                 mae->status = SFC_MAE_STATUS_UNSUPPORTED;
 227                 return 0;
 228         }
 229
 230         if (encp->enc_mae_admin) {
 231                 sfc_log_init(sa, "init MAE");
 232                 rc = efx_mae_init(sa->nic);
 233                 if (rc != 0)
 234                         goto fail_mae_init;
 235
 236                 sfc_log_init(sa, "get MAE limits");
 237                 rc = efx_mae_get_limits(sa->nic, &limits);
 238                 if (rc != 0)
 239                         goto fail_mae_get_limits;
 240
 241                 sfc_log_init(sa, "init MAE counter registry");
 242                 rc = sfc_mae_counter_registry_init(&mae->counter_registry,
 243                                                    limits.eml_max_n_counters);
 244                 if (rc != 0) {
 245                         sfc_err(sa, "failed to init MAE counters registry for %u entries: %s",
 246                                 limits.eml_max_n_counters, rte_strerror(rc));
 247                         goto fail_counter_registry_init;
 248                 }
 249         }
 250
 251         sfc_log_init(sa, "assign ethdev MPORT");
 252         rc = sfc_mae_assign_ethdev_mport(sa, &ethdev_mport);
 253         if (rc != 0)
 254                 goto fail_mae_assign_ethdev_mport;
 255
 256         sfc_log_init(sa, "assign entity MPORT");
 257         rc = sfc_mae_assign_entity_mport(sa, &entity_mport);
 258         if (rc != 0)
 259                 goto fail_mae_assign_entity_mport;
 260
 261         sfc_log_init(sa, "assign RTE switch domain");
 262         rc = sfc_mae_assign_switch_domain(sa, &mae->switch_domain_id);
 263         if (rc != 0)
 264                 goto fail_mae_assign_switch_domain;
 265
 266         sfc_log_init(sa, "assign RTE switch port");
 267         switch_port_request.type = SFC_MAE_SWITCH_PORT_INDEPENDENT;
 268         switch_port_request.ethdev_mportp = &ethdev_mport;
 269         switch_port_request.entity_mportp = &entity_mport;
 270         switch_port_request.ethdev_port_id = sas->port_id;
 271         switch_port_request.port_data.indep.mae_admin =
 272                 encp->enc_mae_admin == B_TRUE;
 273         rc = sfc_mae_assign_switch_port(mae->switch_domain_id,
 274                                         &switch_port_request,
 275                                         &mae->switch_port_id);
 276         if (rc != 0)
 277                 goto fail_mae_assign_switch_port;
 278
 279         if (encp->enc_mae_admin) {
 280                 sfc_log_init(sa, "allocate encap. header bounce buffer");
 281                 bounce_eh->buf_size = limits.eml_encap_header_size_limit;
 282                 bounce_eh->buf = rte_malloc("sfc_mae_bounce_eh",
 283                                             bounce_eh->buf_size, 0);
 284                 if (bounce_eh->buf == NULL)
 285                         goto fail_mae_alloc_bounce_eh;
 286
 287                 mae->nb_outer_rule_prios_max = limits.eml_max_n_outer_prios;
 288                 mae->nb_action_rule_prios_max = limits.eml_max_n_action_prios;
 289                 mae->encap_types_supported = limits.eml_encap_types_supported;
 290         }
 291
 292         TAILQ_INIT(&mae->outer_rules);
 293         TAILQ_INIT(&mae->mac_addrs);
 294         TAILQ_INIT(&mae->encap_headers);
 295         TAILQ_INIT(&mae->action_sets);
 296
 297         if (encp->enc_mae_admin)
 298                 mae->status = SFC_MAE_STATUS_ADMIN;
 299         else
 300                 mae->status = SFC_MAE_STATUS_SUPPORTED;
 301
 302         sfc_log_init(sa, "done");
 303
 304         return 0;
 305
 306 fail_mae_alloc_bounce_eh:
 307 fail_mae_assign_switch_port:
 308 fail_mae_assign_switch_domain:
 309 fail_mae_assign_entity_mport:
 310 fail_mae_assign_ethdev_mport:
 311         if (encp->enc_mae_admin)
 312                 sfc_mae_counter_registry_fini(&mae->counter_registry);
 313
 314 fail_counter_registry_init:
 315 fail_mae_get_limits:
 316         if (encp->enc_mae_admin)
 317                 efx_mae_fini(sa->nic);
 318
 319 fail_mae_init:
 320         sfc_log_init(sa, "failed %d", rc);
 321
 322         return rc;
 323 }
 324
 325 void
 326 sfc_mae_detach(struct sfc_adapter *sa)
 327 {
 328         struct sfc_mae *mae = &sa->mae;
 329         enum sfc_mae_status status_prev = mae->status;
 330
 331         sfc_log_init(sa, "entry");
 332
 333         mae->nb_action_rule_prios_max = 0;
 334         mae->status = SFC_MAE_STATUS_UNKNOWN;
 335
 336         if (status_prev != SFC_MAE_STATUS_ADMIN)
 337                 return;
 338
 339         rte_free(mae->bounce_eh.buf);
 340         sfc_mae_counter_registry_fini(&mae->counter_registry);
 341
 342         efx_mae_fini(sa->nic);
 343
 344         sfc_log_init(sa, "done");
 345 }
 346
 347 static struct sfc_mae_outer_rule *
 348 sfc_mae_outer_rule_attach(struct sfc_adapter *sa,
 349                           const efx_mae_match_spec_t *match_spec,
 350                           efx_tunnel_protocol_t encap_type)
 351 {
 352         struct sfc_mae_outer_rule *rule;
 353         struct sfc_mae *mae = &sa->mae;
 354
 355         SFC_ASSERT(sfc_adapter_is_locked(sa));
 356
 357         TAILQ_FOREACH(rule, &mae->outer_rules, entries) {
 358                 if (efx_mae_match_specs_equal(rule->match_spec, match_spec) &&
 359                     rule->encap_type == encap_type) {
 360                         sfc_dbg(sa, "attaching to outer_rule=%p", rule);
 361                         ++(rule->refcnt);
 362                         return rule;
 363                 }
 364         }
 365
 366         return NULL;
 367 }
 368
 369 static int
 370 sfc_mae_outer_rule_add(struct sfc_adapter *sa,
 371                        efx_mae_match_spec_t *match_spec,
 372                        efx_tunnel_protocol_t encap_type,
 373                        struct sfc_mae_outer_rule **rulep)
 374 {
 375         struct sfc_mae_outer_rule *rule;
 376         struct sfc_mae *mae = &sa->mae;
 377
 378         SFC_ASSERT(sfc_adapter_is_locked(sa));
 379
 380         rule = rte_zmalloc("sfc_mae_outer_rule", sizeof(*rule), 0);
 381         if (rule == NULL)
 382                 return ENOMEM;
 383
 384         rule->refcnt = 1;
 385         rule->match_spec = match_spec;
 386         rule->encap_type = encap_type;
 387
 388         rule->fw_rsrc.rule_id.id = EFX_MAE_RSRC_ID_INVALID;
 389
 390         TAILQ_INSERT_TAIL(&mae->outer_rules, rule, entries);
 391
 392         *rulep = rule;
 393
 394         sfc_dbg(sa, "added outer_rule=%p", rule);
 395
 396         return 0;
 397 }
 398
 399 static void
 400 sfc_mae_outer_rule_del(struct sfc_adapter *sa,
 401                        struct sfc_mae_outer_rule *rule)
 402 {
 403         struct sfc_mae *mae = &sa->mae;
 404
 405         SFC_ASSERT(sfc_adapter_is_locked(sa));
 406         SFC_ASSERT(rule->refcnt != 0);
 407
 408         --(rule->refcnt);
 409
 410         if (rule->refcnt != 0)
 411                 return;
 412
 413         if (rule->fw_rsrc.rule_id.id != EFX_MAE_RSRC_ID_INVALID ||
 414             rule->fw_rsrc.refcnt != 0) {
 415                 sfc_err(sa, "deleting outer_rule=%p abandons its FW resource: OR_ID=0x%08x, refcnt=%u",
 416                         rule, rule->fw_rsrc.rule_id.id, rule->fw_rsrc.refcnt);
 417         }
 418
 419         efx_mae_match_spec_fini(sa->nic, rule->match_spec);
 420
 421         TAILQ_REMOVE(&mae->outer_rules, rule, entries);
 422         rte_free(rule);
 423
 424         sfc_dbg(sa, "deleted outer_rule=%p", rule);
 425 }
 426
 427 static int
 428 sfc_mae_outer_rule_enable(struct sfc_adapter *sa,
 429                           struct sfc_mae_outer_rule *rule,
 430                           efx_mae_match_spec_t *match_spec_action)
 431 {
 432         struct sfc_mae_fw_rsrc *fw_rsrc = &rule->fw_rsrc;
 433         int rc;
 434
 435         SFC_ASSERT(sfc_adapter_is_locked(sa));
 436
 437         if (fw_rsrc->refcnt == 0) {
 438                 SFC_ASSERT(fw_rsrc->rule_id.id == EFX_MAE_RSRC_ID_INVALID);
 439                 SFC_ASSERT(rule->match_spec != NULL);
 440
 441                 rc = efx_mae_outer_rule_insert(sa->nic, rule->match_spec,
 442                                                rule->encap_type,
 443                                                &fw_rsrc->rule_id);
 444                 if (rc != 0) {
 445                         sfc_err(sa, "failed to enable outer_rule=%p: %s",
 446                                 rule, strerror(rc));
 447                         return rc;
 448                 }
 449         }
 450
 451         if (match_spec_action == NULL)
 452                 goto skip_action_rule;
 453
 454         rc = efx_mae_match_spec_outer_rule_id_set(match_spec_action,
 455                                                   &fw_rsrc->rule_id);
 456         if (rc != 0) {
 457                 if (fw_rsrc->refcnt == 0) {
 458                         (void)efx_mae_outer_rule_remove(sa->nic,
 459                                                         &fw_rsrc->rule_id);
 460                         fw_rsrc->rule_id.id = EFX_MAE_RSRC_ID_INVALID;
 461                 }
 462
 463                 sfc_err(sa, "can't match on outer rule ID: %s", strerror(rc));
 464
 465                 return rc;
 466         }
 467
 468 skip_action_rule:
 469         if (fw_rsrc->refcnt == 0) {
 470                 sfc_dbg(sa, "enabled outer_rule=%p: OR_ID=0x%08x",
 471                         rule, fw_rsrc->rule_id.id);
 472         }
 473
 474         ++(fw_rsrc->refcnt);
 475
 476         return 0;
 477 }
 478
 479 static void
 480 sfc_mae_outer_rule_disable(struct sfc_adapter *sa,
 481                            struct sfc_mae_outer_rule *rule)
 482 {
 483         struct sfc_mae_fw_rsrc *fw_rsrc = &rule->fw_rsrc;
 484         int rc;
 485
 486         SFC_ASSERT(sfc_adapter_is_locked(sa));
 487
 488         if (fw_rsrc->rule_id.id == EFX_MAE_RSRC_ID_INVALID ||
 489             fw_rsrc->refcnt == 0) {
 490                 sfc_err(sa, "failed to disable outer_rule=%p: already disabled; OR_ID=0x%08x, refcnt=%u",
 491                         rule, fw_rsrc->rule_id.id, fw_rsrc->refcnt);
 492                 return;
 493         }
 494
 495         if (fw_rsrc->refcnt == 1) {
 496                 rc = efx_mae_outer_rule_remove(sa->nic, &fw_rsrc->rule_id);
 497                 if (rc == 0) {
 498                         sfc_dbg(sa, "disabled outer_rule=%p with OR_ID=0x%08x",
 499                                 rule, fw_rsrc->rule_id.id);
 500                 } else {
 501                         sfc_err(sa, "failed to disable outer_rule=%p with OR_ID=0x%08x: %s",
 502                                 rule, fw_rsrc->rule_id.id, strerror(rc));
 503                 }
 504                 fw_rsrc->rule_id.id = EFX_MAE_RSRC_ID_INVALID;
 505         }
 506
 507         --(fw_rsrc->refcnt);
 508 }
 509
 510 static struct sfc_mae_mac_addr *
 511 sfc_mae_mac_addr_attach(struct sfc_adapter *sa,
 512                         const uint8_t addr_bytes[EFX_MAC_ADDR_LEN])
 513 {
 514         struct sfc_mae_mac_addr *mac_addr;
 515         struct sfc_mae *mae = &sa->mae;
 516
 517         SFC_ASSERT(sfc_adapter_is_locked(sa));
 518
 519         TAILQ_FOREACH(mac_addr, &mae->mac_addrs, entries) {
 520                 if (memcmp(mac_addr->addr_bytes, addr_bytes,
 521                            EFX_MAC_ADDR_LEN) == 0) {
 522                         sfc_dbg(sa, "attaching to mac_addr=%p", mac_addr);
 523                         ++(mac_addr->refcnt);
 524                         return mac_addr;
 525                 }
 526         }
 527
 528         return NULL;
 529 }
 530
 531 static int
 532 sfc_mae_mac_addr_add(struct sfc_adapter *sa,
 533                      const uint8_t addr_bytes[EFX_MAC_ADDR_LEN],
 534                      struct sfc_mae_mac_addr **mac_addrp)
 535 {
 536         struct sfc_mae_mac_addr *mac_addr;
 537         struct sfc_mae *mae = &sa->mae;
 538
 539         SFC_ASSERT(sfc_adapter_is_locked(sa));
 540
 541         mac_addr = rte_zmalloc("sfc_mae_mac_addr", sizeof(*mac_addr), 0);
 542         if (mac_addr == NULL)
 543                 return ENOMEM;
 544
 545         rte_memcpy(mac_addr->addr_bytes, addr_bytes, EFX_MAC_ADDR_LEN);
 546
 547         mac_addr->refcnt = 1;
 548         mac_addr->fw_rsrc.mac_id.id = EFX_MAE_RSRC_ID_INVALID;
 549
 550         TAILQ_INSERT_TAIL(&mae->mac_addrs, mac_addr, entries);
 551
 552         *mac_addrp = mac_addr;
 553
 554         sfc_dbg(sa, "added mac_addr=%p", mac_addr);
 555
 556         return 0;
 557 }
 558
 559 static void
 560 sfc_mae_mac_addr_del(struct sfc_adapter *sa, struct sfc_mae_mac_addr *mac_addr)
 561 {
 562         struct sfc_mae *mae = &sa->mae;
 563
 564         if (mac_addr == NULL)
 565                 return;
 566
 567         SFC_ASSERT(sfc_adapter_is_locked(sa));
 568         SFC_ASSERT(mac_addr->refcnt != 0);
 569
 570         --(mac_addr->refcnt);
 571
 572         if (mac_addr->refcnt != 0)
 573                 return;
 574
 575         if (mac_addr->fw_rsrc.mac_id.id != EFX_MAE_RSRC_ID_INVALID ||
 576             mac_addr->fw_rsrc.refcnt != 0) {
 577                 sfc_err(sa, "deleting mac_addr=%p abandons its FW resource: MAC_ID=0x%08x, refcnt=%u",
 578                         mac_addr, mac_addr->fw_rsrc.mac_id.id,
 579                         mac_addr->fw_rsrc.refcnt);
 580         }
 581
 582         TAILQ_REMOVE(&mae->mac_addrs, mac_addr, entries);
 583         rte_free(mac_addr);
 584
 585         sfc_dbg(sa, "deleted mac_addr=%p", mac_addr);
 586 }
 587
 588 enum sfc_mae_mac_addr_type {
 589         SFC_MAE_MAC_ADDR_DST,
 590         SFC_MAE_MAC_ADDR_SRC
 591 };
 592
 593 static int
 594 sfc_mae_mac_addr_enable(struct sfc_adapter *sa,
 595                         struct sfc_mae_mac_addr *mac_addr,
 596                         enum sfc_mae_mac_addr_type type,
 597                         efx_mae_actions_t *aset_spec)
 598 {
 599         struct sfc_mae_fw_rsrc *fw_rsrc;
 600         int rc = 0;
 601
 602         if (mac_addr == NULL)
 603                 return 0;
 604
 605         SFC_ASSERT(sfc_adapter_is_locked(sa));
 606
 607         fw_rsrc = &mac_addr->fw_rsrc;
 608
 609         if (fw_rsrc->refcnt == 0) {
 610                 SFC_ASSERT(fw_rsrc->mac_id.id == EFX_MAE_RSRC_ID_INVALID);
 611
 612                 rc = efx_mae_mac_addr_alloc(sa->nic, mac_addr->addr_bytes,
 613                                             &fw_rsrc->mac_id);
 614                 if (rc != 0) {
 615                         sfc_err(sa, "failed to enable mac_addr=%p: %s",
 616                                 mac_addr, strerror(rc));
 617                         return rc;
 618                 }
 619         }
 620
 621         switch (type) {
 622         case SFC_MAE_MAC_ADDR_DST:
 623                 rc = efx_mae_action_set_fill_in_dst_mac_id(aset_spec,
 624                                                            &fw_rsrc->mac_id);
 625                 break;
 626         case SFC_MAE_MAC_ADDR_SRC:
 627                 rc = efx_mae_action_set_fill_in_src_mac_id(aset_spec,
 628                                                            &fw_rsrc->mac_id);
 629                 break;
 630         default:
 631                 rc = EINVAL;
 632                 break;
 633         }
 634
 635         if (rc != 0) {
 636                 if (fw_rsrc->refcnt == 0) {
 637                         (void)efx_mae_mac_addr_free(sa->nic, &fw_rsrc->mac_id);
 638                         fw_rsrc->mac_id.id = EFX_MAE_RSRC_ID_INVALID;
 639                 }
 640
 641                 sfc_err(sa, "cannot fill in MAC address entry ID: %s",
 642                         strerror(rc));
 643
 644                 return rc;
 645         }
 646
 647         if (fw_rsrc->refcnt == 0) {
 648                 sfc_dbg(sa, "enabled mac_addr=%p: MAC_ID=0x%08x",
 649                         mac_addr, fw_rsrc->mac_id.id);
 650         }
 651
 652         ++(fw_rsrc->refcnt);
 653
 654         return 0;
 655 }
 656
 657 static void
 658 sfc_mae_mac_addr_disable(struct sfc_adapter *sa,
 659                          struct sfc_mae_mac_addr *mac_addr)
 660 {
 661         struct sfc_mae_fw_rsrc *fw_rsrc;
 662         int rc;
 663
 664         if (mac_addr == NULL)
 665                 return;
 666
 667         SFC_ASSERT(sfc_adapter_is_locked(sa));
 668
 669         fw_rsrc = &mac_addr->fw_rsrc;
 670
 671         if (fw_rsrc->mac_id.id == EFX_MAE_RSRC_ID_INVALID ||
 672             fw_rsrc->refcnt == 0) {
 673                 sfc_err(sa, "failed to disable mac_addr=%p: already disabled; MAC_ID=0x%08x, refcnt=%u",
 674                         mac_addr, fw_rsrc->mac_id.id, fw_rsrc->refcnt);
 675                 return;
 676         }
 677
 678         if (fw_rsrc->refcnt == 1) {
 679                 rc = efx_mae_mac_addr_free(sa->nic, &fw_rsrc->mac_id);
 680                 if (rc == 0) {
 681                         sfc_dbg(sa, "disabled mac_addr=%p with MAC_ID=0x%08x",
 682                                 mac_addr, fw_rsrc->mac_id.id);
 683                 } else {
 684                         sfc_err(sa, "failed to disable mac_addr=%p with MAC_ID=0x%08x: %s",
 685                                 mac_addr, fw_rsrc->mac_id.id, strerror(rc));
 686                 }
 687                 fw_rsrc->mac_id.id = EFX_MAE_RSRC_ID_INVALID;
 688         }
 689
 690         --(fw_rsrc->refcnt);
 691 }
 692
 693 static struct sfc_mae_encap_header *
 694 sfc_mae_encap_header_attach(struct sfc_adapter *sa,
 695                             const struct sfc_mae_bounce_eh *bounce_eh)
 696 {
 697         struct sfc_mae_encap_header *encap_header;
 698         struct sfc_mae *mae = &sa->mae;
 699
 700         SFC_ASSERT(sfc_adapter_is_locked(sa));
 701
 702         TAILQ_FOREACH(encap_header, &mae->encap_headers, entries) {
 703                 if (encap_header->size == bounce_eh->size &&
 704                     memcmp(encap_header->buf, bounce_eh->buf,
 705                            bounce_eh->size) == 0) {
 706                         sfc_dbg(sa, "attaching to encap_header=%p",
 707                                 encap_header);
 708                         ++(encap_header->refcnt);
 709                         return encap_header;
 710                 }
 711         }
 712
 713         return NULL;
 714 }
 715
 716 static int
 717 sfc_mae_encap_header_add(struct sfc_adapter *sa,
 718                          const struct sfc_mae_bounce_eh *bounce_eh,
 719                          struct sfc_mae_encap_header **encap_headerp)
 720 {
 721         struct sfc_mae_encap_header *encap_header;
 722         struct sfc_mae *mae = &sa->mae;
 723
 724         SFC_ASSERT(sfc_adapter_is_locked(sa));
 725
 726         encap_header = rte_zmalloc("sfc_mae_encap_header",
 727                                    sizeof(*encap_header), 0);
 728         if (encap_header == NULL)
 729                 return ENOMEM;
 730
 731         encap_header->size = bounce_eh->size;
 732
 733         encap_header->buf = rte_malloc("sfc_mae_encap_header_buf",
 734                                        encap_header->size, 0);
 735         if (encap_header->buf == NULL) {
 736                 rte_free(encap_header);
 737                 return ENOMEM;
 738         }
 739
 740         rte_memcpy(encap_header->buf, bounce_eh->buf, bounce_eh->size);
 741
 742         encap_header->refcnt = 1;
 743         encap_header->type = bounce_eh->type;
 744         encap_header->fw_rsrc.eh_id.id = EFX_MAE_RSRC_ID_INVALID;
 745
 746         TAILQ_INSERT_TAIL(&mae->encap_headers, encap_header, entries);
 747
 748         *encap_headerp = encap_header;
 749
 750         sfc_dbg(sa, "added encap_header=%p", encap_header);
 751
 752         return 0;
 753 }
 754
 755 static void
 756 sfc_mae_encap_header_del(struct sfc_adapter *sa,
 757                        struct sfc_mae_encap_header *encap_header)
 758 {
 759         struct sfc_mae *mae = &sa->mae;
 760
 761         if (encap_header == NULL)
 762                 return;
 763
 764         SFC_ASSERT(sfc_adapter_is_locked(sa));
 765         SFC_ASSERT(encap_header->refcnt != 0);
 766
 767         --(encap_header->refcnt);
 768
 769         if (encap_header->refcnt != 0)
 770                 return;
 771
 772         if (encap_header->fw_rsrc.eh_id.id != EFX_MAE_RSRC_ID_INVALID ||
 773             encap_header->fw_rsrc.refcnt != 0) {
 774                 sfc_err(sa, "deleting encap_header=%p abandons its FW resource: EH_ID=0x%08x, refcnt=%u",
 775                         encap_header, encap_header->fw_rsrc.eh_id.id,
 776                         encap_header->fw_rsrc.refcnt);
 777         }
 778
 779         TAILQ_REMOVE(&mae->encap_headers, encap_header, entries);
 780         rte_free(encap_header->buf);
 781         rte_free(encap_header);
 782
 783         sfc_dbg(sa, "deleted encap_header=%p", encap_header);
 784 }
 785
 786 static int
 787 sfc_mae_encap_header_enable(struct sfc_adapter *sa,
 788                             struct sfc_mae_encap_header *encap_header,
 789                             efx_mae_actions_t *action_set_spec)
 790 {
 791         struct sfc_mae_fw_rsrc *fw_rsrc;
 792         int rc;
 793
 794         if (encap_header == NULL)
 795                 return 0;
 796
 797         SFC_ASSERT(sfc_adapter_is_locked(sa));
 798
 799         fw_rsrc = &encap_header->fw_rsrc;
 800
 801         if (fw_rsrc->refcnt == 0) {
 802                 SFC_ASSERT(fw_rsrc->eh_id.id == EFX_MAE_RSRC_ID_INVALID);
 803                 SFC_ASSERT(encap_header->buf != NULL);
 804                 SFC_ASSERT(encap_header->size != 0);
 805
 806                 rc = efx_mae_encap_header_alloc(sa->nic, encap_header->type,
 807                                                 encap_header->buf,
 808                                                 encap_header->size,
 809                                                 &fw_rsrc->eh_id);
 810                 if (rc != 0) {
 811                         sfc_err(sa, "failed to enable encap_header=%p: %s",
 812                                 encap_header, strerror(rc));
 813                         return rc;
 814                 }
 815         }
 816
 817         rc = efx_mae_action_set_fill_in_eh_id(action_set_spec,
 818                                               &fw_rsrc->eh_id);
 819         if (rc != 0) {
 820                 if (fw_rsrc->refcnt == 0) {
 821                         (void)efx_mae_encap_header_free(sa->nic,
 822                                                         &fw_rsrc->eh_id);
 823                         fw_rsrc->eh_id.id = EFX_MAE_RSRC_ID_INVALID;
 824                 }
 825
 826                 sfc_err(sa, "can't fill in encap. header ID: %s", strerror(rc));
 827
 828                 return rc;
 829         }
 830
 831         if (fw_rsrc->refcnt == 0) {
 832                 sfc_dbg(sa, "enabled encap_header=%p: EH_ID=0x%08x",
 833                         encap_header, fw_rsrc->eh_id.id);
 834         }
 835
 836         ++(fw_rsrc->refcnt);
 837
 838         return 0;
 839 }
 840
 841 static void
 842 sfc_mae_encap_header_disable(struct sfc_adapter *sa,
 843                              struct sfc_mae_encap_header *encap_header)
 844 {
 845         struct sfc_mae_fw_rsrc *fw_rsrc;
 846         int rc;
 847
 848         if (encap_header == NULL)
 849                 return;
 850
 851         SFC_ASSERT(sfc_adapter_is_locked(sa));
 852
 853         fw_rsrc = &encap_header->fw_rsrc;
 854
 855         if (fw_rsrc->eh_id.id == EFX_MAE_RSRC_ID_INVALID ||
 856             fw_rsrc->refcnt == 0) {
 857                 sfc_err(sa, "failed to disable encap_header=%p: already disabled; EH_ID=0x%08x, refcnt=%u",
 858                         encap_header, fw_rsrc->eh_id.id, fw_rsrc->refcnt);
 859                 return;
 860         }
 861
 862         if (fw_rsrc->refcnt == 1) {
 863                 rc = efx_mae_encap_header_free(sa->nic, &fw_rsrc->eh_id);
 864                 if (rc == 0) {
 865                         sfc_dbg(sa, "disabled encap_header=%p with EH_ID=0x%08x",
 866                                 encap_header, fw_rsrc->eh_id.id);
 867                 } else {
 868                         sfc_err(sa, "failed to disable encap_header=%p with EH_ID=0x%08x: %s",
 869                                 encap_header, fw_rsrc->eh_id.id, strerror(rc));
 870                 }
 871                 fw_rsrc->eh_id.id = EFX_MAE_RSRC_ID_INVALID;
 872         }
 873
 874         --(fw_rsrc->refcnt);
 875 }
 876
 877 static int
 878 sfc_mae_counters_enable(struct sfc_adapter *sa,
 879                         struct sfc_mae_counter_id *counters,
 880                         unsigned int n_counters,
 881                         efx_mae_actions_t *action_set_spec)
 882 {
 883         int rc;
 884
 885         sfc_log_init(sa, "entry");
 886
 887         if (n_counters == 0) {
 888                 sfc_log_init(sa, "no counters - skip");
 889                 return 0;
 890         }
 891
 892         SFC_ASSERT(sfc_adapter_is_locked(sa));
 893         SFC_ASSERT(n_counters == 1);
 894
 895         rc = sfc_mae_counter_enable(sa, &counters[0]);
 896         if (rc != 0) {
 897                 sfc_err(sa, "failed to enable MAE counter %u: %s",
 898                         counters[0].mae_id.id, rte_strerror(rc));
 899                 goto fail_counter_add;
 900         }
 901
 902         rc = efx_mae_action_set_fill_in_counter_id(action_set_spec,
 903                                                    &counters[0].mae_id);
 904         if (rc != 0) {
 905                 sfc_err(sa, "failed to fill in MAE counter %u in action set: %s",
 906                         counters[0].mae_id.id, rte_strerror(rc));
 907                 goto fail_fill_in_id;
 908         }
 909
 910         return 0;
 911
 912 fail_fill_in_id:
 913         (void)sfc_mae_counter_disable(sa, &counters[0]);
 914
 915 fail_counter_add:
 916         sfc_log_init(sa, "failed: %s", rte_strerror(rc));
 917         return rc;
 918 }
 919
 920 static int
 921 sfc_mae_counters_disable(struct sfc_adapter *sa,
 922                          struct sfc_mae_counter_id *counters,
 923                          unsigned int n_counters)
 924 {
 925         if (n_counters == 0)
 926                 return 0;
 927
 928         SFC_ASSERT(sfc_adapter_is_locked(sa));
 929         SFC_ASSERT(n_counters == 1);
 930
 931         if (counters[0].mae_id.id == EFX_MAE_RSRC_ID_INVALID) {
 932                 sfc_err(sa, "failed to disable: already disabled");
 933                 return EALREADY;
 934         }
 935
 936         return sfc_mae_counter_disable(sa, &counters[0]);
 937 }
 938
 939 struct sfc_mae_aset_ctx {
 940         uint64_t                        *ft_group_hit_counter;
 941         struct sfc_mae_encap_header     *encap_header;
 942         struct sfc_flow_tunnel          *counter_ft;
 943         unsigned int                    n_counters;
 944         struct sfc_mae_mac_addr         *dst_mac;
 945         struct sfc_mae_mac_addr         *src_mac;
 946
 947         efx_mae_actions_t               *spec;
 948 };
 949
 950 static struct sfc_mae_action_set *
 951 sfc_mae_action_set_attach(struct sfc_adapter *sa,
 952                           const struct sfc_mae_aset_ctx *ctx)
 953 {
 954         struct sfc_mae_action_set *action_set;
 955         struct sfc_mae *mae = &sa->mae;
 956
 957         SFC_ASSERT(sfc_adapter_is_locked(sa));
 958
 959         /*
 960          * Shared counters are not supported, hence, action
 961          * sets with counters are not attachable.
 962          */
 963         if (ctx->n_counters != 0)
 964                 return NULL;
 965
 966         TAILQ_FOREACH(action_set, &mae->action_sets, entries) {
 967                 if (action_set->encap_header == ctx->encap_header &&
 968                     action_set->dst_mac_addr == ctx->dst_mac &&
 969                     action_set->src_mac_addr == ctx->src_mac &&
 970                     efx_mae_action_set_specs_equal(action_set->spec,
 971                                                    ctx->spec)) {
 972                         sfc_dbg(sa, "attaching to action_set=%p", action_set);
 973                         ++(action_set->refcnt);
 974                         return action_set;
 975                 }
 976         }
 977
 978         return NULL;
 979 }
 980
 981 static int
 982 sfc_mae_action_set_add(struct sfc_adapter *sa,
 983                        const struct rte_flow_action actions[],
 984                        const struct sfc_mae_aset_ctx *ctx,
 985                        struct sfc_mae_action_set **action_setp)
 986 {
 987         struct sfc_mae_action_set *action_set;
 988         struct sfc_mae *mae = &sa->mae;
 989         unsigned int i;
 990
 991         SFC_ASSERT(sfc_adapter_is_locked(sa));
 992
 993         action_set = rte_zmalloc("sfc_mae_action_set", sizeof(*action_set), 0);
 994         if (action_set == NULL) {
 995                 sfc_err(sa, "failed to alloc action set");
 996                 return ENOMEM;
 997         }
 998
 999         if (ctx->n_counters > 0) {
1000                 const struct rte_flow_action *action;
1001
1002                 action_set->counters = rte_malloc("sfc_mae_counter_ids",
1003                         sizeof(action_set->counters[0]) * ctx->n_counters, 0);
1004                 if (action_set->counters == NULL) {
1005                         rte_free(action_set);
1006                         sfc_err(sa, "failed to alloc counters");
1007                         return ENOMEM;
1008                 }
1009
1010                 for (i = 0; i < ctx->n_counters; ++i) {
1011                         action_set->counters[i].rte_id_valid = B_FALSE;
1012                         action_set->counters[i].mae_id.id =
1013                                 EFX_MAE_RSRC_ID_INVALID;
1014
1015                         action_set->counters[i].ft_group_hit_counter =
1016                                 ctx->ft_group_hit_counter;
1017                         action_set->counters[i].ft = ctx->counter_ft;
1018                 }
1019
1020                 for (action = actions, i = 0;
1021                      action->type != RTE_FLOW_ACTION_TYPE_END &&
1022                      i < ctx->n_counters; ++action) {
1023                         const struct rte_flow_action_count *conf;
1024
1025                         if (action->type != RTE_FLOW_ACTION_TYPE_COUNT)
1026                                 continue;
1027
1028                         conf = action->conf;
1029
1030                         action_set->counters[i].rte_id_valid = B_TRUE;
1031                         action_set->counters[i].rte_id = conf->id;
1032                         i++;
1033                 }
1034                 action_set->n_counters = ctx->n_counters;
1035         }
1036
1037         action_set->refcnt = 1;
1038         action_set->spec = ctx->spec;
1039         action_set->encap_header = ctx->encap_header;
1040         action_set->dst_mac_addr = ctx->dst_mac;
1041         action_set->src_mac_addr = ctx->src_mac;
1042
1043         action_set->fw_rsrc.aset_id.id = EFX_MAE_RSRC_ID_INVALID;
1044
1045         TAILQ_INSERT_TAIL(&mae->action_sets, action_set, entries);
1046
1047         *action_setp = action_set;
1048
1049         sfc_dbg(sa, "added action_set=%p", action_set);
1050
1051         return 0;
1052 }
1053
1054 static void
1055 sfc_mae_action_set_del(struct sfc_adapter *sa,
1056                        struct sfc_mae_action_set *action_set)
1057 {
1058         struct sfc_mae *mae = &sa->mae;
1059
1060         SFC_ASSERT(sfc_adapter_is_locked(sa));
1061         SFC_ASSERT(action_set->refcnt != 0);
1062
1063         --(action_set->refcnt);
1064
1065         if (action_set->refcnt != 0)
1066                 return;
1067
1068         if (action_set->fw_rsrc.aset_id.id != EFX_MAE_RSRC_ID_INVALID ||
1069             action_set->fw_rsrc.refcnt != 0) {
1070                 sfc_err(sa, "deleting action_set=%p abandons its FW resource: AS_ID=0x%08x, refcnt=%u",
1071                         action_set, action_set->fw_rsrc.aset_id.id,
1072                         action_set->fw_rsrc.refcnt);
1073         }
1074
1075         efx_mae_action_set_spec_fini(sa->nic, action_set->spec);
1076         sfc_mae_encap_header_del(sa, action_set->encap_header);
1077         sfc_mae_mac_addr_del(sa, action_set->dst_mac_addr);
1078         sfc_mae_mac_addr_del(sa, action_set->src_mac_addr);
1079         if (action_set->n_counters > 0) {
1080                 SFC_ASSERT(action_set->n_counters == 1);
1081                 SFC_ASSERT(action_set->counters[0].mae_id.id ==
1082                            EFX_MAE_RSRC_ID_INVALID);
1083                 rte_free(action_set->counters);
1084         }
1085         TAILQ_REMOVE(&mae->action_sets, action_set, entries);
1086         rte_free(action_set);
1087
1088         sfc_dbg(sa, "deleted action_set=%p", action_set);
1089 }
1090
1091 static int
1092 sfc_mae_action_set_enable(struct sfc_adapter *sa,
1093                           struct sfc_mae_action_set *action_set)
1094 {
1095         struct sfc_mae_encap_header *encap_header = action_set->encap_header;
1096         struct sfc_mae_mac_addr *dst_mac_addr = action_set->dst_mac_addr;
1097         struct sfc_mae_mac_addr *src_mac_addr = action_set->src_mac_addr;
1098         struct sfc_mae_counter_id *counters = action_set->counters;
1099         struct sfc_mae_fw_rsrc *fw_rsrc = &action_set->fw_rsrc;
1100         int rc;
1101
1102         SFC_ASSERT(sfc_adapter_is_locked(sa));
1103
1104         if (fw_rsrc->refcnt == 0) {
1105                 SFC_ASSERT(fw_rsrc->aset_id.id == EFX_MAE_RSRC_ID_INVALID);
1106                 SFC_ASSERT(action_set->spec != NULL);
1107
1108                 rc = sfc_mae_mac_addr_enable(sa, dst_mac_addr,
1109                                              SFC_MAE_MAC_ADDR_DST,
1110                                              action_set->spec);
1111                 if (rc != 0)
1112                         return rc;
1113
1114                 rc = sfc_mae_mac_addr_enable(sa, src_mac_addr,
1115                                              SFC_MAE_MAC_ADDR_SRC,
1116                                              action_set->spec);
1117                 if (rc != 0) {
1118                         sfc_mae_mac_addr_disable(sa, dst_mac_addr);
1119                         return rc;
1120                 }
1121
1122                 rc = sfc_mae_encap_header_enable(sa, encap_header,
1123                                                  action_set->spec);
1124                 if (rc != 0) {
1125                         sfc_mae_mac_addr_disable(sa, src_mac_addr);
1126                         sfc_mae_mac_addr_disable(sa, dst_mac_addr);
1127                         return rc;
1128                 }
1129
1130                 rc = sfc_mae_counters_enable(sa, counters,
1131                                              action_set->n_counters,
1132                                              action_set->spec);
1133                 if (rc != 0) {
1134                         sfc_err(sa, "failed to enable %u MAE counters: %s",
1135                                 action_set->n_counters, rte_strerror(rc));
1136
1137                         sfc_mae_encap_header_disable(sa, encap_header);
1138                         sfc_mae_mac_addr_disable(sa, src_mac_addr);
1139                         sfc_mae_mac_addr_disable(sa, dst_mac_addr);
1140                         return rc;
1141                 }
1142
1143                 rc = efx_mae_action_set_alloc(sa->nic, action_set->spec,
1144                                               &fw_rsrc->aset_id);
1145                 if (rc != 0) {
1146                         sfc_err(sa, "failed to enable action_set=%p: %s",
1147                                 action_set, strerror(rc));
1148
1149                         (void)sfc_mae_counters_disable(sa, counters,
1150                                                        action_set->n_counters);
1151                         sfc_mae_encap_header_disable(sa, encap_header);
1152                         sfc_mae_mac_addr_disable(sa, src_mac_addr);
1153                         sfc_mae_mac_addr_disable(sa, dst_mac_addr);
1154                         return rc;
1155                 }
1156
1157                 sfc_dbg(sa, "enabled action_set=%p: AS_ID=0x%08x",
1158                         action_set, fw_rsrc->aset_id.id);
1159         }
1160
1161         ++(fw_rsrc->refcnt);
1162
1163         return 0;
1164 }
1165
1166 static void
1167 sfc_mae_action_set_disable(struct sfc_adapter *sa,
1168                            struct sfc_mae_action_set *action_set)
1169 {
1170         struct sfc_mae_fw_rsrc *fw_rsrc = &action_set->fw_rsrc;
1171         int rc;
1172
1173         SFC_ASSERT(sfc_adapter_is_locked(sa));
1174
1175         if (fw_rsrc->aset_id.id == EFX_MAE_RSRC_ID_INVALID ||
1176             fw_rsrc->refcnt == 0) {
1177                 sfc_err(sa, "failed to disable action_set=%p: already disabled; AS_ID=0x%08x, refcnt=%u",
1178                         action_set, fw_rsrc->aset_id.id, fw_rsrc->refcnt);
1179                 return;
1180         }
1181
1182         if (fw_rsrc->refcnt == 1) {
1183                 rc = efx_mae_action_set_free(sa->nic, &fw_rsrc->aset_id);
1184                 if (rc == 0) {
1185                         sfc_dbg(sa, "disabled action_set=%p with AS_ID=0x%08x",
1186                                 action_set, fw_rsrc->aset_id.id);
1187                 } else {
1188                         sfc_err(sa, "failed to disable action_set=%p with AS_ID=0x%08x: %s",
1189                                 action_set, fw_rsrc->aset_id.id, strerror(rc));
1190                 }
1191                 fw_rsrc->aset_id.id = EFX_MAE_RSRC_ID_INVALID;
1192
1193                 rc = sfc_mae_counters_disable(sa, action_set->counters,
1194                                               action_set->n_counters);
1195                 if (rc != 0) {
1196                         sfc_err(sa, "failed to disable %u MAE counters: %s",
1197                                 action_set->n_counters, rte_strerror(rc));
1198                 }
1199
1200                 sfc_mae_encap_header_disable(sa, action_set->encap_header);
1201                 sfc_mae_mac_addr_disable(sa, action_set->src_mac_addr);
1202                 sfc_mae_mac_addr_disable(sa, action_set->dst_mac_addr);
1203         }
1204
1205         --(fw_rsrc->refcnt);
1206 }
1207
1208 void
1209 sfc_mae_flow_cleanup(struct sfc_adapter *sa,
1210                      struct rte_flow *flow)
1211 {
1212         struct sfc_flow_spec *spec;
1213         struct sfc_flow_spec_mae *spec_mae;
1214
1215         if (flow == NULL)
1216                 return;
1217
1218         spec = &flow->spec;
1219
1220         if (spec == NULL)
1221                 return;
1222
1223         spec_mae = &spec->mae;
1224
1225         if (spec_mae->ft != NULL) {
1226                 if (spec_mae->ft_rule_type == SFC_FT_RULE_JUMP)
1227                         spec_mae->ft->jump_rule_is_set = B_FALSE;
1228
1229                 SFC_ASSERT(spec_mae->ft->refcnt != 0);
1230                 --(spec_mae->ft->refcnt);
1231         }
1232
1233         SFC_ASSERT(spec_mae->rule_id.id == EFX_MAE_RSRC_ID_INVALID);
1234
1235         if (spec_mae->outer_rule != NULL)
1236                 sfc_mae_outer_rule_del(sa, spec_mae->outer_rule);
1237
1238         if (spec_mae->action_set != NULL)
1239                 sfc_mae_action_set_del(sa, spec_mae->action_set);
1240
1241         if (spec_mae->match_spec != NULL)
1242                 efx_mae_match_spec_fini(sa->nic, spec_mae->match_spec);
1243 }
1244
1245 static int
1246 sfc_mae_set_ethertypes(struct sfc_mae_parse_ctx *ctx)
1247 {
1248         struct sfc_mae_pattern_data *pdata = &ctx->pattern_data;
1249         const efx_mae_field_id_t *fremap = ctx->field_ids_remap;
1250         const efx_mae_field_id_t field_ids[] = {
1251                 EFX_MAE_FIELD_VLAN0_PROTO_BE,
1252                 EFX_MAE_FIELD_VLAN1_PROTO_BE,
1253         };
1254         const struct sfc_mae_ethertype *et;
1255         unsigned int i;
1256         int rc;
1257
1258         /*
1259          * In accordance with RTE flow API convention, the innermost L2
1260          * item's "type" ("inner_type") is a L3 EtherType. If there is
1261          * no L3 item, it's 0x0000/0x0000.
1262          */
1263         et = &pdata->ethertypes[pdata->nb_vlan_tags];
1264         rc = efx_mae_match_spec_field_set(ctx->match_spec,
1265                                           fremap[EFX_MAE_FIELD_ETHER_TYPE_BE],
1266                                           sizeof(et->value),
1267                                           (const uint8_t *)&et->value,
1268                                           sizeof(et->mask),
1269                                           (const uint8_t *)&et->mask);
1270         if (rc != 0)
1271                 return rc;
1272
1273         /*
1274          * sfc_mae_rule_parse_item_vlan() has already made sure
1275          * that pdata->nb_vlan_tags does not exceed this figure.
1276          */
1277         RTE_BUILD_BUG_ON(SFC_MAE_MATCH_VLAN_MAX_NTAGS != 2);
1278
1279         for (i = 0; i < pdata->nb_vlan_tags; ++i) {
1280                 et = &pdata->ethertypes[i];
1281
1282                 rc = efx_mae_match_spec_field_set(ctx->match_spec,
1283                                                   fremap[field_ids[i]],
1284                                                   sizeof(et->value),
1285                                                   (const uint8_t *)&et->value,
1286                                                   sizeof(et->mask),
1287                                                   (const uint8_t *)&et->mask);
1288                 if (rc != 0)
1289                         return rc;
1290         }
1291
1292         return 0;
1293 }
1294
1295 static int
1296 sfc_mae_rule_process_pattern_data(struct sfc_mae_parse_ctx *ctx,
1297                                   struct rte_flow_error *error)
1298 {
1299         const efx_mae_field_id_t *fremap = ctx->field_ids_remap;
1300         struct sfc_mae_pattern_data *pdata = &ctx->pattern_data;
1301         struct sfc_mae_ethertype *ethertypes = pdata->ethertypes;
1302         const rte_be16_t supported_tpids[] = {
1303                 /* VLAN standard TPID (always the first element) */
1304                 RTE_BE16(RTE_ETHER_TYPE_VLAN),
1305
1306                 /* Double-tagging TPIDs */
1307                 RTE_BE16(RTE_ETHER_TYPE_QINQ),
1308                 RTE_BE16(RTE_ETHER_TYPE_QINQ1),
1309                 RTE_BE16(RTE_ETHER_TYPE_QINQ2),
1310                 RTE_BE16(RTE_ETHER_TYPE_QINQ3),
1311         };
1312         bool enforce_tag_presence[SFC_MAE_MATCH_VLAN_MAX_NTAGS] = {0};
1313         unsigned int nb_supported_tpids = RTE_DIM(supported_tpids);
1314         unsigned int ethertype_idx;
1315         const uint8_t *valuep;
1316         const uint8_t *maskp;
1317         int rc;
1318
1319         if (pdata->innermost_ethertype_restriction.mask != 0 &&
1320             pdata->nb_vlan_tags < SFC_MAE_MATCH_VLAN_MAX_NTAGS) {
1321                 /*
1322                  * If a single item VLAN is followed by a L3 item, value
1323                  * of "type" in item ETH can't be a double-tagging TPID.
1324                  */
1325                 nb_supported_tpids = 1;
1326         }
1327
1328         /*
1329          * sfc_mae_rule_parse_item_vlan() has already made sure
1330          * that pdata->nb_vlan_tags does not exceed this figure.
1331          */
1332         RTE_BUILD_BUG_ON(SFC_MAE_MATCH_VLAN_MAX_NTAGS != 2);
1333
1334         for (ethertype_idx = 0;
1335              ethertype_idx < pdata->nb_vlan_tags; ++ethertype_idx) {
1336                 rte_be16_t tpid_v = ethertypes[ethertype_idx].value;
1337                 rte_be16_t tpid_m = ethertypes[ethertype_idx].mask;
1338                 unsigned int tpid_idx;
1339
1340                 /*
1341                  * This loop can have only two iterations. On the second one,
1342                  * drop outer tag presence enforcement bit because the inner
1343                  * tag presence automatically assumes that for the outer tag.
1344                  */
1345                 enforce_tag_presence[0] = B_FALSE;
1346
1347                 if (tpid_m == RTE_BE16(0)) {
1348                         if (pdata->tci_masks[ethertype_idx] == RTE_BE16(0))
1349                                 enforce_tag_presence[ethertype_idx] = B_TRUE;
1350
1351                         /* No match on this field, and no value check. */
1352                         nb_supported_tpids = 1;
1353                         continue;
1354                 }
1355
1356                 /* Exact match is supported only. */
1357                 if (tpid_m != RTE_BE16(0xffff)) {
1358                         sfc_err(ctx->sa, "TPID mask must be 0x0 or 0xffff; got 0x%04x",
1359                                 rte_be_to_cpu_16(tpid_m));
1360                         rc = EINVAL;
1361                         goto fail;
1362                 }
1363
1364                 for (tpid_idx = pdata->nb_vlan_tags - ethertype_idx - 1;
1365                      tpid_idx < nb_supported_tpids; ++tpid_idx) {
1366                         if (tpid_v == supported_tpids[tpid_idx])
1367                                 break;
1368                 }
1369
1370                 if (tpid_idx == nb_supported_tpids) {
1371                         sfc_err(ctx->sa, "TPID 0x%04x is unsupported",
1372                                 rte_be_to_cpu_16(tpid_v));
1373                         rc = EINVAL;
1374                         goto fail;
1375                 }
1376
1377                 nb_supported_tpids = 1;
1378         }
1379
1380         if (pdata->innermost_ethertype_restriction.mask == RTE_BE16(0xffff)) {
1381                 struct sfc_mae_ethertype *et = &ethertypes[ethertype_idx];
1382                 rte_be16_t enforced_et;
1383
1384                 enforced_et = pdata->innermost_ethertype_restriction.value;
1385
1386                 if (et->mask == 0) {
1387                         et->mask = RTE_BE16(0xffff);
1388                         et->value = enforced_et;
1389                 } else if (et->mask != RTE_BE16(0xffff) ||
1390                            et->value != enforced_et) {
1391                         sfc_err(ctx->sa, "L3 EtherType must be 0x0/0x0 or 0x%04x/0xffff; got 0x%04x/0x%04x",
1392                                 rte_be_to_cpu_16(enforced_et),
1393                                 rte_be_to_cpu_16(et->value),
1394                                 rte_be_to_cpu_16(et->mask));
1395                         rc = EINVAL;
1396                         goto fail;
1397                 }
1398         }
1399
1400         /*
1401          * Now, when the number of VLAN tags is known, set fields
1402          * ETHER_TYPE, VLAN0_PROTO and VLAN1_PROTO so that the first
1403          * one is either a valid L3 EtherType (or 0x0000/0x0000),
1404          * and the last two are valid TPIDs (or 0x0000/0x0000).
1405          */
1406         rc = sfc_mae_set_ethertypes(ctx);
1407         if (rc != 0)
1408                 goto fail;
1409
1410         if (pdata->l3_next_proto_restriction_mask == 0xff) {
1411                 if (pdata->l3_next_proto_mask == 0) {
1412                         pdata->l3_next_proto_mask = 0xff;
1413                         pdata->l3_next_proto_value =
1414                                 pdata->l3_next_proto_restriction_value;
1415                 } else if (pdata->l3_next_proto_mask != 0xff ||
1416                            pdata->l3_next_proto_value !=
1417                            pdata->l3_next_proto_restriction_value) {
1418                         sfc_err(ctx->sa, "L3 next protocol must be 0x0/0x0 or 0x%02x/0xff; got 0x%02x/0x%02x",
1419                                 pdata->l3_next_proto_restriction_value,
1420                                 pdata->l3_next_proto_value,
1421                                 pdata->l3_next_proto_mask);
1422                         rc = EINVAL;
1423                         goto fail;
1424                 }
1425         }
1426
1427         if (enforce_tag_presence[0] || pdata->has_ovlan_mask) {
1428                 rc = efx_mae_match_spec_bit_set(ctx->match_spec,
1429                                                 fremap[EFX_MAE_FIELD_HAS_OVLAN],
1430                                                 enforce_tag_presence[0] ||
1431                                                 pdata->has_ovlan_value);
1432                 if (rc != 0)
1433                         goto fail;
1434         }
1435
1436         if (enforce_tag_presence[1] || pdata->has_ivlan_mask) {
1437                 rc = efx_mae_match_spec_bit_set(ctx->match_spec,
1438                                                 fremap[EFX_MAE_FIELD_HAS_IVLAN],
1439                                                 enforce_tag_presence[1] ||
1440                                                 pdata->has_ivlan_value);
1441                 if (rc != 0)
1442                         goto fail;
1443         }
1444
1445         valuep = (const uint8_t *)&pdata->l3_next_proto_value;
1446         maskp = (const uint8_t *)&pdata->l3_next_proto_mask;
1447         rc = efx_mae_match_spec_field_set(ctx->match_spec,
1448                                           fremap[EFX_MAE_FIELD_IP_PROTO],
1449                                           sizeof(pdata->l3_next_proto_value),
1450                                           valuep,
1451                                           sizeof(pdata->l3_next_proto_mask),
1452                                           maskp);
1453         if (rc != 0)
1454                 goto fail;
1455
1456         return 0;
1457
1458 fail:
1459         return rte_flow_error_set(error, rc, RTE_FLOW_ERROR_TYPE_ITEM, NULL,
1460                                   "Failed to process pattern data");
1461 }
1462
1463 static int
1464 sfc_mae_rule_parse_item_mark(const struct rte_flow_item *item,
1465                              struct sfc_flow_parse_ctx *ctx,
1466                              struct rte_flow_error *error)
1467 {
1468         const struct rte_flow_item_mark *spec = item->spec;
1469         struct sfc_mae_parse_ctx *ctx_mae = ctx->mae;
1470
1471         if (spec == NULL) {
1472                 return rte_flow_error_set(error, EINVAL,
1473                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
1474                                 "NULL spec in item MARK");
1475         }
1476
1477         /*
1478          * This item is used in tunnel offload support only.
1479          * It must go before any network header items. This
1480          * way, sfc_mae_rule_preparse_item_mark() must have
1481          * already parsed it. Only one item MARK is allowed.
1482          */
1483         if (ctx_mae->ft_rule_type != SFC_FT_RULE_GROUP ||
1484             spec->id != (uint32_t)SFC_FT_ID_TO_MARK(ctx_mae->ft->id)) {
1485                 return rte_flow_error_set(error, EINVAL,
1486                                           RTE_FLOW_ERROR_TYPE_ITEM,
1487                                           item, "invalid item MARK");
1488         }
1489
1490         return 0;
1491 }
1492
1493 static int
1494 sfc_mae_rule_parse_item_port_id(const struct rte_flow_item *item,
1495                                 struct sfc_flow_parse_ctx *ctx,
1496                                 struct rte_flow_error *error)
1497 {
1498         struct sfc_mae_parse_ctx *ctx_mae = ctx->mae;
1499         const struct rte_flow_item_port_id supp_mask = {
1500                 .id = 0xffffffff,
1501         };
1502         const void *def_mask = &rte_flow_item_port_id_mask;
1503         const struct rte_flow_item_port_id *spec = NULL;
1504         const struct rte_flow_item_port_id *mask = NULL;
1505         efx_mport_sel_t mport_sel;
1506         int rc;
1507
1508         if (ctx_mae->match_mport_set) {
1509                 return rte_flow_error_set(error, ENOTSUP,
1510                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
1511                                 "Can't handle multiple traffic source items");
1512         }
1513
1514         rc = sfc_flow_parse_init(item,
1515                                  (const void **)&spec, (const void **)&mask,
1516                                  (const void *)&supp_mask, def_mask,
1517                                  sizeof(struct rte_flow_item_port_id), error);
1518         if (rc != 0)
1519                 return rc;
1520
1521         if (mask->id != supp_mask.id) {
1522                 return rte_flow_error_set(error, EINVAL,
1523                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
1524                                 "Bad mask in the PORT_ID pattern item");
1525         }
1526
1527         /* If "spec" is not set, could be any port ID */
1528         if (spec == NULL)
1529                 return 0;
1530
1531         if (spec->id > UINT16_MAX) {
1532                 return rte_flow_error_set(error, EOVERFLOW,
1533                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
1534                                           "The port ID is too large");
1535         }
1536
1537         rc = sfc_mae_switch_get_ethdev_mport(ctx_mae->sa->mae.switch_domain_id,
1538                                              spec->id, &mport_sel);
1539         if (rc != 0) {
1540                 return rte_flow_error_set(error, rc,
1541                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
1542                                 "Can't get m-port for the given ethdev");
1543         }
1544
1545         rc = efx_mae_match_spec_mport_set(ctx_mae->match_spec,
1546                                           &mport_sel, NULL);
1547         if (rc != 0) {
1548                 return rte_flow_error_set(error, rc,
1549                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
1550                                 "Failed to set MPORT for the port ID");
1551         }
1552
1553         ctx_mae->match_mport_set = B_TRUE;
1554
1555         return 0;
1556 }
1557
1558 static int
1559 sfc_mae_rule_parse_item_ethdev_based(const struct rte_flow_item *item,
1560                                      struct sfc_flow_parse_ctx *ctx,
1561                                      struct rte_flow_error *error)
1562 {
1563         struct sfc_mae_parse_ctx *ctx_mae = ctx->mae;
1564         const struct rte_flow_item_ethdev supp_mask = {
1565                 .port_id = 0xffff,
1566         };
1567         const void *def_mask = &rte_flow_item_ethdev_mask;
1568         const struct rte_flow_item_ethdev *spec = NULL;
1569         const struct rte_flow_item_ethdev *mask = NULL;
1570         efx_mport_sel_t mport_sel;
1571         int rc;
1572
1573         if (ctx_mae->match_mport_set) {
1574                 return rte_flow_error_set(error, ENOTSUP,
1575                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
1576                                 "Can't handle multiple traffic source items");
1577         }
1578
1579         rc = sfc_flow_parse_init(item,
1580                                  (const void **)&spec, (const void **)&mask,
1581                                  (const void *)&supp_mask, def_mask,
1582                                  sizeof(struct rte_flow_item_ethdev), error);
1583         if (rc != 0)
1584                 return rc;
1585
1586         if (mask->port_id != supp_mask.port_id) {
1587                 return rte_flow_error_set(error, EINVAL,
1588                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
1589                                 "Bad mask in the ethdev-based pattern item");
1590         }
1591
1592         /* If "spec" is not set, could be any port ID */
1593         if (spec == NULL)
1594                 return 0;
1595
1596         switch (item->type) {
1597         case RTE_FLOW_ITEM_TYPE_PORT_REPRESENTOR:
1598                 rc = sfc_mae_switch_get_ethdev_mport(
1599                                 ctx_mae->sa->mae.switch_domain_id,
1600                                 spec->port_id, &mport_sel);
1601                 if (rc != 0) {
1602                         return rte_flow_error_set(error, rc,
1603                                         RTE_FLOW_ERROR_TYPE_ITEM, item,
1604                                         "Can't get m-port for the given ethdev");
1605                 }
1606                 break;
1607         case RTE_FLOW_ITEM_TYPE_REPRESENTED_PORT:
1608                 rc = sfc_mae_switch_get_entity_mport(
1609                                 ctx_mae->sa->mae.switch_domain_id,
1610                                 spec->port_id, &mport_sel);
1611                 if (rc != 0) {
1612                         return rte_flow_error_set(error, rc,
1613                                         RTE_FLOW_ERROR_TYPE_ITEM, item,
1614                                         "Can't get m-port for the given ethdev");
1615                 }
1616                 break;
1617         default:
1618                 return rte_flow_error_set(error, EINVAL,
1619                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
1620                                 "Unsupported ethdev-based flow item");
1621         }
1622
1623         rc = efx_mae_match_spec_mport_set(ctx_mae->match_spec,
1624                                           &mport_sel, NULL);
1625         if (rc != 0) {
1626                 return rte_flow_error_set(error, rc,
1627                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
1628                                 "Failed to set MPORT for the port ID");
1629         }
1630
1631         ctx_mae->match_mport_set = B_TRUE;
1632
1633         return 0;
1634 }
1635
1636 static int
1637 sfc_mae_rule_parse_item_phy_port(const struct rte_flow_item *item,
1638                                  struct sfc_flow_parse_ctx *ctx,
1639                                  struct rte_flow_error *error)
1640 {
1641         struct sfc_mae_parse_ctx *ctx_mae = ctx->mae;
1642         const struct rte_flow_item_phy_port supp_mask = {
1643                 .index = 0xffffffff,
1644         };
1645         const void *def_mask = &rte_flow_item_phy_port_mask;
1646         const struct rte_flow_item_phy_port *spec = NULL;
1647         const struct rte_flow_item_phy_port *mask = NULL;
1648         efx_mport_sel_t mport_v;
1649         int rc;
1650
1651         if (ctx_mae->match_mport_set) {
1652                 return rte_flow_error_set(error, ENOTSUP,
1653                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
1654                                 "Can't handle multiple traffic source items");
1655         }
1656
1657         rc = sfc_flow_parse_init(item,
1658                                  (const void **)&spec, (const void **)&mask,
1659                                  (const void *)&supp_mask, def_mask,
1660                                  sizeof(struct rte_flow_item_phy_port), error);
1661         if (rc != 0)
1662                 return rc;
1663
1664         if (mask->index != supp_mask.index) {
1665                 return rte_flow_error_set(error, EINVAL,
1666                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
1667                                 "Bad mask in the PHY_PORT pattern item");
1668         }
1669
1670         /* If "spec" is not set, could be any physical port */
1671         if (spec == NULL)
1672                 return 0;
1673
1674         rc = efx_mae_mport_by_phy_port(spec->index, &mport_v);
1675         if (rc != 0) {
1676                 return rte_flow_error_set(error, rc,
1677                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
1678                                 "Failed to convert the PHY_PORT index");
1679         }
1680
1681         rc = efx_mae_match_spec_mport_set(ctx_mae->match_spec, &mport_v, NULL);
1682         if (rc != 0) {
1683                 return rte_flow_error_set(error, rc,
1684                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
1685                                 "Failed to set MPORT for the PHY_PORT");
1686         }
1687
1688         ctx_mae->match_mport_set = B_TRUE;
1689
1690         return 0;
1691 }
1692
1693 static int
1694 sfc_mae_rule_parse_item_pf(const struct rte_flow_item *item,
1695                            struct sfc_flow_parse_ctx *ctx,
1696                            struct rte_flow_error *error)
1697 {
1698         struct sfc_mae_parse_ctx *ctx_mae = ctx->mae;
1699         const efx_nic_cfg_t *encp = efx_nic_cfg_get(ctx_mae->sa->nic);
1700         efx_mport_sel_t mport_v;
1701         int rc;
1702
1703         if (ctx_mae->match_mport_set) {
1704                 return rte_flow_error_set(error, ENOTSUP,
1705                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
1706                                 "Can't handle multiple traffic source items");
1707         }
1708
1709         rc = efx_mae_mport_by_pcie_function(encp->enc_pf, EFX_PCI_VF_INVALID,
1710                                             &mport_v);
1711         if (rc != 0) {
1712                 return rte_flow_error_set(error, rc,
1713                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
1714                                 "Failed to convert the PF ID");
1715         }
1716
1717         rc = efx_mae_match_spec_mport_set(ctx_mae->match_spec, &mport_v, NULL);
1718         if (rc != 0) {
1719                 return rte_flow_error_set(error, rc,
1720                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
1721                                 "Failed to set MPORT for the PF");
1722         }
1723
1724         ctx_mae->match_mport_set = B_TRUE;
1725
1726         return 0;
1727 }
1728
1729 static int
1730 sfc_mae_rule_parse_item_vf(const struct rte_flow_item *item,
1731                            struct sfc_flow_parse_ctx *ctx,
1732                            struct rte_flow_error *error)
1733 {
1734         struct sfc_mae_parse_ctx *ctx_mae = ctx->mae;
1735         const efx_nic_cfg_t *encp = efx_nic_cfg_get(ctx_mae->sa->nic);
1736         const struct rte_flow_item_vf supp_mask = {
1737                 .id = 0xffffffff,
1738         };
1739         const void *def_mask = &rte_flow_item_vf_mask;
1740         const struct rte_flow_item_vf *spec = NULL;
1741         const struct rte_flow_item_vf *mask = NULL;
1742         efx_mport_sel_t mport_v;
1743         int rc;
1744
1745         if (ctx_mae->match_mport_set) {
1746                 return rte_flow_error_set(error, ENOTSUP,
1747                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
1748                                 "Can't handle multiple traffic source items");
1749         }
1750
1751         rc = sfc_flow_parse_init(item,
1752                                  (const void **)&spec, (const void **)&mask,
1753                                  (const void *)&supp_mask, def_mask,
1754                                  sizeof(struct rte_flow_item_vf), error);
1755         if (rc != 0)
1756                 return rc;
1757
1758         if (mask->id != supp_mask.id) {
1759                 return rte_flow_error_set(error, EINVAL,
1760                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
1761                                 "Bad mask in the VF pattern item");
1762         }
1763
1764         /*
1765          * If "spec" is not set, the item requests any VF related to the
1766          * PF of the current DPDK port (but not the PF itself).
1767          * Reject this match criterion as unsupported.
1768          */
1769         if (spec == NULL) {
1770                 return rte_flow_error_set(error, EINVAL,
1771                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
1772                                 "Bad spec in the VF pattern item");
1773         }
1774
1775         rc = efx_mae_mport_by_pcie_function(encp->enc_pf, spec->id, &mport_v);
1776         if (rc != 0) {
1777                 return rte_flow_error_set(error, rc,
1778                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
1779                                 "Failed to convert the PF + VF IDs");
1780         }
1781
1782         rc = efx_mae_match_spec_mport_set(ctx_mae->match_spec, &mport_v, NULL);
1783         if (rc != 0) {
1784                 return rte_flow_error_set(error, rc,
1785                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
1786                                 "Failed to set MPORT for the PF + VF");
1787         }
1788
1789         ctx_mae->match_mport_set = B_TRUE;
1790
1791         return 0;
1792 }
1793
1794 /*
1795  * Having this field ID in a field locator means that this
1796  * locator cannot be used to actually set the field at the
1797  * time when the corresponding item gets encountered. Such
1798  * fields get stashed in the parsing context instead. This
1799  * is required to resolve dependencies between the stashed
1800  * fields. See sfc_mae_rule_process_pattern_data().
1801  */
1802 #define SFC_MAE_FIELD_HANDLING_DEFERRED EFX_MAE_FIELD_NIDS
1803
1804 struct sfc_mae_field_locator {
1805         efx_mae_field_id_t              field_id;
1806         size_t                          size;
1807         /* Field offset in the corresponding rte_flow_item_ struct */
1808         size_t                          ofst;
1809 };
1810
1811 static void
1812 sfc_mae_item_build_supp_mask(const struct sfc_mae_field_locator *field_locators,
1813                              unsigned int nb_field_locators, void *mask_ptr,
1814                              size_t mask_size)
1815 {
1816         unsigned int i;
1817
1818         memset(mask_ptr, 0, mask_size);
1819
1820         for (i = 0; i < nb_field_locators; ++i) {
1821                 const struct sfc_mae_field_locator *fl = &field_locators[i];
1822
1823                 SFC_ASSERT(fl->ofst + fl->size <= mask_size);
1824                 memset(RTE_PTR_ADD(mask_ptr, fl->ofst), 0xff, fl->size);
1825         }
1826 }
1827
1828 static int
1829 sfc_mae_parse_item(const struct sfc_mae_field_locator *field_locators,
1830                    unsigned int nb_field_locators, const uint8_t *spec,
1831                    const uint8_t *mask, struct sfc_mae_parse_ctx *ctx,
1832                    struct rte_flow_error *error)
1833 {
1834         const efx_mae_field_id_t *fremap = ctx->field_ids_remap;
1835         unsigned int i;
1836         int rc = 0;
1837
1838         for (i = 0; i < nb_field_locators; ++i) {
1839                 const struct sfc_mae_field_locator *fl = &field_locators[i];
1840
1841                 if (fl->field_id == SFC_MAE_FIELD_HANDLING_DEFERRED)
1842                         continue;
1843
1844                 rc = efx_mae_match_spec_field_set(ctx->match_spec,
1845                                                   fremap[fl->field_id],
1846                                                   fl->size, spec + fl->ofst,
1847                                                   fl->size, mask + fl->ofst);
1848                 if (rc != 0)
1849                         break;
1850         }
1851
1852         if (rc != 0) {
1853                 rc = rte_flow_error_set(error, rc, RTE_FLOW_ERROR_TYPE_ITEM,
1854                                 NULL, "Failed to process item fields");
1855         }
1856
1857         return rc;
1858 }
1859
1860 static const struct sfc_mae_field_locator flocs_eth[] = {
1861         {
1862                 /*
1863                  * This locator is used only for building supported fields mask.
1864                  * The field is handled by sfc_mae_rule_process_pattern_data().
1865                  */
1866                 SFC_MAE_FIELD_HANDLING_DEFERRED,
1867                 RTE_SIZEOF_FIELD(struct rte_flow_item_eth, type),
1868                 offsetof(struct rte_flow_item_eth, type),
1869         },
1870         {
1871                 EFX_MAE_FIELD_ETH_DADDR_BE,
1872                 RTE_SIZEOF_FIELD(struct rte_flow_item_eth, dst),
1873                 offsetof(struct rte_flow_item_eth, dst),
1874         },
1875         {
1876                 EFX_MAE_FIELD_ETH_SADDR_BE,
1877                 RTE_SIZEOF_FIELD(struct rte_flow_item_eth, src),
1878                 offsetof(struct rte_flow_item_eth, src),
1879         },
1880 };
1881
1882 static int
1883 sfc_mae_rule_parse_item_eth(const struct rte_flow_item *item,
1884                             struct sfc_flow_parse_ctx *ctx,
1885                             struct rte_flow_error *error)
1886 {
1887         struct sfc_mae_parse_ctx *ctx_mae = ctx->mae;
1888         struct rte_flow_item_eth override_mask;
1889         struct rte_flow_item_eth supp_mask;
1890         const uint8_t *spec = NULL;
1891         const uint8_t *mask = NULL;
1892         int rc;
1893
1894         sfc_mae_item_build_supp_mask(flocs_eth, RTE_DIM(flocs_eth),
1895                                      &supp_mask, sizeof(supp_mask));
1896         supp_mask.has_vlan = 1;
1897
1898         rc = sfc_flow_parse_init(item,
1899                                  (const void **)&spec, (const void **)&mask,
1900                                  (const void *)&supp_mask,
1901                                  &rte_flow_item_eth_mask,
1902                                  sizeof(struct rte_flow_item_eth), error);
1903         if (rc != 0)
1904                 return rc;
1905
1906         if (ctx_mae->ft_rule_type == SFC_FT_RULE_JUMP && mask != NULL) {
1907                 /*
1908                  * The HW/FW hasn't got support for match on MAC addresses in
1909                  * outer rules yet (this will change). Match on VLAN presence
1910                  * isn't supported either. Ignore these match criteria.
1911                  */
1912                 memcpy(&override_mask, mask, sizeof(override_mask));
1913                 memset(&override_mask.hdr.dst_addr, 0,
1914                        sizeof(override_mask.hdr.dst_addr));
1915                 memset(&override_mask.hdr.src_addr, 0,
1916                        sizeof(override_mask.hdr.src_addr));
1917                 override_mask.has_vlan = 0;
1918
1919                 mask = (const uint8_t *)&override_mask;
1920         }
1921
1922         if (spec != NULL) {
1923                 struct sfc_mae_pattern_data *pdata = &ctx_mae->pattern_data;
1924                 struct sfc_mae_ethertype *ethertypes = pdata->ethertypes;
1925                 const struct rte_flow_item_eth *item_spec;
1926                 const struct rte_flow_item_eth *item_mask;
1927
1928                 item_spec = (const struct rte_flow_item_eth *)spec;
1929                 item_mask = (const struct rte_flow_item_eth *)mask;
1930
1931                 /*
1932                  * Remember various match criteria in the parsing context.
1933                  * sfc_mae_rule_process_pattern_data() will consider them
1934                  * altogether when the rest of the items have been parsed.
1935                  */
1936                 ethertypes[0].value = item_spec->type;
1937                 ethertypes[0].mask = item_mask->type;
1938                 if (item_mask->has_vlan) {
1939                         pdata->has_ovlan_mask = B_TRUE;
1940                         if (item_spec->has_vlan)
1941                                 pdata->has_ovlan_value = B_TRUE;
1942                 }
1943         } else {
1944                 /*
1945                  * The specification is empty. The overall pattern
1946                  * validity will be enforced at the end of parsing.
1947                  * See sfc_mae_rule_process_pattern_data().
1948                  */
1949                 return 0;
1950         }
1951
1952         return sfc_mae_parse_item(flocs_eth, RTE_DIM(flocs_eth), spec, mask,
1953                                   ctx_mae, error);
1954 }
1955
1956 static const struct sfc_mae_field_locator flocs_vlan[] = {
1957         /* Outermost tag */
1958         {
1959                 EFX_MAE_FIELD_VLAN0_TCI_BE,
1960                 RTE_SIZEOF_FIELD(struct rte_flow_item_vlan, tci),
1961                 offsetof(struct rte_flow_item_vlan, tci),
1962         },
1963         {
1964                 /*
1965                  * This locator is used only for building supported fields mask.
1966                  * The field is handled by sfc_mae_rule_process_pattern_data().
1967                  */
1968                 SFC_MAE_FIELD_HANDLING_DEFERRED,
1969                 RTE_SIZEOF_FIELD(struct rte_flow_item_vlan, inner_type),
1970                 offsetof(struct rte_flow_item_vlan, inner_type),
1971         },
1972
1973         /* Innermost tag */
1974         {
1975                 EFX_MAE_FIELD_VLAN1_TCI_BE,
1976                 RTE_SIZEOF_FIELD(struct rte_flow_item_vlan, tci),
1977                 offsetof(struct rte_flow_item_vlan, tci),
1978         },
1979         {
1980                 /*
1981                  * This locator is used only for building supported fields mask.
1982                  * The field is handled by sfc_mae_rule_process_pattern_data().
1983                  */
1984                 SFC_MAE_FIELD_HANDLING_DEFERRED,
1985                 RTE_SIZEOF_FIELD(struct rte_flow_item_vlan, inner_type),
1986                 offsetof(struct rte_flow_item_vlan, inner_type),
1987         },
1988 };
1989
1990 static int
1991 sfc_mae_rule_parse_item_vlan(const struct rte_flow_item *item,
1992                              struct sfc_flow_parse_ctx *ctx,
1993                              struct rte_flow_error *error)
1994 {
1995         struct sfc_mae_parse_ctx *ctx_mae = ctx->mae;
1996         struct sfc_mae_pattern_data *pdata = &ctx_mae->pattern_data;
1997         boolean_t *has_vlan_mp_by_nb_tags[SFC_MAE_MATCH_VLAN_MAX_NTAGS] = {
1998                 &pdata->has_ovlan_mask,
1999                 &pdata->has_ivlan_mask,
2000         };
2001         boolean_t *has_vlan_vp_by_nb_tags[SFC_MAE_MATCH_VLAN_MAX_NTAGS] = {
2002                 &pdata->has_ovlan_value,
2003                 &pdata->has_ivlan_value,
2004         };
2005         boolean_t *cur_tag_presence_bit_mp;
2006         boolean_t *cur_tag_presence_bit_vp;
2007         const struct sfc_mae_field_locator *flocs;
2008         struct rte_flow_item_vlan supp_mask;
2009         const uint8_t *spec = NULL;
2010         const uint8_t *mask = NULL;
2011         unsigned int nb_flocs;
2012         int rc;
2013
2014         RTE_BUILD_BUG_ON(SFC_MAE_MATCH_VLAN_MAX_NTAGS != 2);
2015
2016         if (pdata->nb_vlan_tags == SFC_MAE_MATCH_VLAN_MAX_NTAGS) {
2017                 return rte_flow_error_set(error, ENOTSUP,
2018                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
2019                                 "Can't match that many VLAN tags");
2020         }
2021
2022         cur_tag_presence_bit_mp = has_vlan_mp_by_nb_tags[pdata->nb_vlan_tags];
2023         cur_tag_presence_bit_vp = has_vlan_vp_by_nb_tags[pdata->nb_vlan_tags];
2024
2025         if (*cur_tag_presence_bit_mp == B_TRUE &&
2026             *cur_tag_presence_bit_vp == B_FALSE) {
2027                 return rte_flow_error_set(error, EINVAL,
2028                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
2029                                 "The previous item enforces no (more) VLAN, "
2030                                 "so the current item (VLAN) must not exist");
2031         }
2032
2033         nb_flocs = RTE_DIM(flocs_vlan) / SFC_MAE_MATCH_VLAN_MAX_NTAGS;
2034         flocs = flocs_vlan + pdata->nb_vlan_tags * nb_flocs;
2035
2036         sfc_mae_item_build_supp_mask(flocs, nb_flocs,
2037                                      &supp_mask, sizeof(supp_mask));
2038         /*
2039          * This only means that the field is supported by the driver and libefx.
2040          * Support on NIC level will be checked when all items have been parsed.
2041          */
2042         supp_mask.has_more_vlan = 1;
2043
2044         rc = sfc_flow_parse_init(item,
2045                                  (const void **)&spec, (const void **)&mask,
2046                                  (const void *)&supp_mask,
2047                                  &rte_flow_item_vlan_mask,
2048                                  sizeof(struct rte_flow_item_vlan), error);
2049         if (rc != 0)
2050                 return rc;
2051
2052         if (spec != NULL) {
2053                 struct sfc_mae_ethertype *et = pdata->ethertypes;
2054                 const struct rte_flow_item_vlan *item_spec;
2055                 const struct rte_flow_item_vlan *item_mask;
2056
2057                 item_spec = (const struct rte_flow_item_vlan *)spec;
2058                 item_mask = (const struct rte_flow_item_vlan *)mask;
2059
2060                 /*
2061                  * Remember various match criteria in the parsing context.
2062                  * sfc_mae_rule_process_pattern_data() will consider them
2063                  * altogether when the rest of the items have been parsed.
2064                  */
2065                 et[pdata->nb_vlan_tags + 1].value = item_spec->inner_type;
2066                 et[pdata->nb_vlan_tags + 1].mask = item_mask->inner_type;
2067                 pdata->tci_masks[pdata->nb_vlan_tags] = item_mask->tci;
2068                 if (item_mask->has_more_vlan) {
2069                         if (pdata->nb_vlan_tags ==
2070                             SFC_MAE_MATCH_VLAN_MAX_NTAGS) {
2071                                 return rte_flow_error_set(error, ENOTSUP,
2072                                         RTE_FLOW_ERROR_TYPE_ITEM, item,
2073                                         "Can't use 'has_more_vlan' in "
2074                                         "the second item VLAN");
2075                         }
2076                         pdata->has_ivlan_mask = B_TRUE;
2077                         if (item_spec->has_more_vlan)
2078                                 pdata->has_ivlan_value = B_TRUE;
2079                 }
2080
2081                 /* Convert TCI to MAE representation right now. */
2082                 rc = sfc_mae_parse_item(flocs, nb_flocs, spec, mask,
2083                                         ctx_mae, error);
2084                 if (rc != 0)
2085                         return rc;
2086         }
2087
2088         ++(pdata->nb_vlan_tags);
2089
2090         return 0;
2091 }
2092
2093 static const struct sfc_mae_field_locator flocs_ipv4[] = {
2094         {
2095                 EFX_MAE_FIELD_SRC_IP4_BE,
2096                 RTE_SIZEOF_FIELD(struct rte_flow_item_ipv4, hdr.src_addr),
2097                 offsetof(struct rte_flow_item_ipv4, hdr.src_addr),
2098         },
2099         {
2100                 EFX_MAE_FIELD_DST_IP4_BE,
2101                 RTE_SIZEOF_FIELD(struct rte_flow_item_ipv4, hdr.dst_addr),
2102                 offsetof(struct rte_flow_item_ipv4, hdr.dst_addr),
2103         },
2104         {
2105                 /*
2106                  * This locator is used only for building supported fields mask.
2107                  * The field is handled by sfc_mae_rule_process_pattern_data().
2108                  */
2109                 SFC_MAE_FIELD_HANDLING_DEFERRED,
2110                 RTE_SIZEOF_FIELD(struct rte_flow_item_ipv4, hdr.next_proto_id),
2111                 offsetof(struct rte_flow_item_ipv4, hdr.next_proto_id),
2112         },
2113         {
2114                 EFX_MAE_FIELD_IP_TOS,
2115                 RTE_SIZEOF_FIELD(struct rte_flow_item_ipv4,
2116                                  hdr.type_of_service),
2117                 offsetof(struct rte_flow_item_ipv4, hdr.type_of_service),
2118         },
2119         {
2120                 EFX_MAE_FIELD_IP_TTL,
2121                 RTE_SIZEOF_FIELD(struct rte_flow_item_ipv4, hdr.time_to_live),
2122                 offsetof(struct rte_flow_item_ipv4, hdr.time_to_live),
2123         },
2124 };
2125
2126 static int
2127 sfc_mae_rule_parse_item_ipv4(const struct rte_flow_item *item,
2128                              struct sfc_flow_parse_ctx *ctx,
2129                              struct rte_flow_error *error)
2130 {
2131         rte_be16_t ethertype_ipv4_be = RTE_BE16(RTE_ETHER_TYPE_IPV4);
2132         struct sfc_mae_parse_ctx *ctx_mae = ctx->mae;
2133         struct sfc_mae_pattern_data *pdata = &ctx_mae->pattern_data;
2134         struct rte_flow_item_ipv4 supp_mask;
2135         const uint8_t *spec = NULL;
2136         const uint8_t *mask = NULL;
2137         int rc;
2138
2139         sfc_mae_item_build_supp_mask(flocs_ipv4, RTE_DIM(flocs_ipv4),
2140                                      &supp_mask, sizeof(supp_mask));
2141
2142         rc = sfc_flow_parse_init(item,
2143                                  (const void **)&spec, (const void **)&mask,
2144                                  (const void *)&supp_mask,
2145                                  &rte_flow_item_ipv4_mask,
2146                                  sizeof(struct rte_flow_item_ipv4), error);
2147         if (rc != 0)
2148                 return rc;
2149
2150         pdata->innermost_ethertype_restriction.value = ethertype_ipv4_be;
2151         pdata->innermost_ethertype_restriction.mask = RTE_BE16(0xffff);
2152
2153         if (spec != NULL) {
2154                 const struct rte_flow_item_ipv4 *item_spec;
2155                 const struct rte_flow_item_ipv4 *item_mask;
2156
2157                 item_spec = (const struct rte_flow_item_ipv4 *)spec;
2158                 item_mask = (const struct rte_flow_item_ipv4 *)mask;
2159
2160                 pdata->l3_next_proto_value = item_spec->hdr.next_proto_id;
2161                 pdata->l3_next_proto_mask = item_mask->hdr.next_proto_id;
2162         } else {
2163                 return 0;
2164         }
2165
2166         return sfc_mae_parse_item(flocs_ipv4, RTE_DIM(flocs_ipv4), spec, mask,
2167                                   ctx_mae, error);
2168 }
2169
2170 static const struct sfc_mae_field_locator flocs_ipv6[] = {
2171         {
2172                 EFX_MAE_FIELD_SRC_IP6_BE,
2173                 RTE_SIZEOF_FIELD(struct rte_flow_item_ipv6, hdr.src_addr),
2174                 offsetof(struct rte_flow_item_ipv6, hdr.src_addr),
2175         },
2176         {
2177                 EFX_MAE_FIELD_DST_IP6_BE,
2178                 RTE_SIZEOF_FIELD(struct rte_flow_item_ipv6, hdr.dst_addr),
2179                 offsetof(struct rte_flow_item_ipv6, hdr.dst_addr),
2180         },
2181         {
2182                 /*
2183                  * This locator is used only for building supported fields mask.
2184                  * The field is handled by sfc_mae_rule_process_pattern_data().
2185                  */
2186                 SFC_MAE_FIELD_HANDLING_DEFERRED,
2187                 RTE_SIZEOF_FIELD(struct rte_flow_item_ipv6, hdr.proto),
2188                 offsetof(struct rte_flow_item_ipv6, hdr.proto),
2189         },
2190         {
2191                 EFX_MAE_FIELD_IP_TTL,
2192                 RTE_SIZEOF_FIELD(struct rte_flow_item_ipv6, hdr.hop_limits),
2193                 offsetof(struct rte_flow_item_ipv6, hdr.hop_limits),
2194         },
2195 };
2196
2197 static int
2198 sfc_mae_rule_parse_item_ipv6(const struct rte_flow_item *item,
2199                              struct sfc_flow_parse_ctx *ctx,
2200                              struct rte_flow_error *error)
2201 {
2202         rte_be16_t ethertype_ipv6_be = RTE_BE16(RTE_ETHER_TYPE_IPV6);
2203         struct sfc_mae_parse_ctx *ctx_mae = ctx->mae;
2204         const efx_mae_field_id_t *fremap = ctx_mae->field_ids_remap;
2205         struct sfc_mae_pattern_data *pdata = &ctx_mae->pattern_data;
2206         struct rte_flow_item_ipv6 supp_mask;
2207         const uint8_t *spec = NULL;
2208         const uint8_t *mask = NULL;
2209         rte_be32_t vtc_flow_be;
2210         uint32_t vtc_flow;
2211         uint8_t tc_value;
2212         uint8_t tc_mask;
2213         int rc;
2214
2215         sfc_mae_item_build_supp_mask(flocs_ipv6, RTE_DIM(flocs_ipv6),
2216                                      &supp_mask, sizeof(supp_mask));
2217
2218         vtc_flow_be = RTE_BE32(RTE_IPV6_HDR_TC_MASK);
2219         memcpy(&supp_mask, &vtc_flow_be, sizeof(vtc_flow_be));
2220
2221         rc = sfc_flow_parse_init(item,
2222                                  (const void **)&spec, (const void **)&mask,
2223                                  (const void *)&supp_mask,
2224                                  &rte_flow_item_ipv6_mask,
2225                                  sizeof(struct rte_flow_item_ipv6), error);
2226         if (rc != 0)
2227                 return rc;
2228
2229         pdata->innermost_ethertype_restriction.value = ethertype_ipv6_be;
2230         pdata->innermost_ethertype_restriction.mask = RTE_BE16(0xffff);
2231
2232         if (spec != NULL) {
2233                 const struct rte_flow_item_ipv6 *item_spec;
2234                 const struct rte_flow_item_ipv6 *item_mask;
2235
2236                 item_spec = (const struct rte_flow_item_ipv6 *)spec;
2237                 item_mask = (const struct rte_flow_item_ipv6 *)mask;
2238
2239                 pdata->l3_next_proto_value = item_spec->hdr.proto;
2240                 pdata->l3_next_proto_mask = item_mask->hdr.proto;
2241         } else {
2242                 return 0;
2243         }
2244
2245         rc = sfc_mae_parse_item(flocs_ipv6, RTE_DIM(flocs_ipv6), spec, mask,
2246                                 ctx_mae, error);
2247         if (rc != 0)
2248                 return rc;
2249
2250         memcpy(&vtc_flow_be, spec, sizeof(vtc_flow_be));
2251         vtc_flow = rte_be_to_cpu_32(vtc_flow_be);
2252         tc_value = (vtc_flow & RTE_IPV6_HDR_TC_MASK) >> RTE_IPV6_HDR_TC_SHIFT;
2253
2254         memcpy(&vtc_flow_be, mask, sizeof(vtc_flow_be));
2255         vtc_flow = rte_be_to_cpu_32(vtc_flow_be);
2256         tc_mask = (vtc_flow & RTE_IPV6_HDR_TC_MASK) >> RTE_IPV6_HDR_TC_SHIFT;
2257
2258         rc = efx_mae_match_spec_field_set(ctx_mae->match_spec,
2259                                           fremap[EFX_MAE_FIELD_IP_TOS],
2260                                           sizeof(tc_value), &tc_value,
2261                                           sizeof(tc_mask), &tc_mask);
2262         if (rc != 0) {
2263                 return rte_flow_error_set(error, rc, RTE_FLOW_ERROR_TYPE_ITEM,
2264                                 NULL, "Failed to process item fields");
2265         }
2266
2267         return 0;
2268 }
2269
2270 static const struct sfc_mae_field_locator flocs_tcp[] = {
2271         {
2272                 EFX_MAE_FIELD_L4_SPORT_BE,
2273                 RTE_SIZEOF_FIELD(struct rte_flow_item_tcp, hdr.src_port),
2274                 offsetof(struct rte_flow_item_tcp, hdr.src_port),
2275         },
2276         {
2277                 EFX_MAE_FIELD_L4_DPORT_BE,
2278                 RTE_SIZEOF_FIELD(struct rte_flow_item_tcp, hdr.dst_port),
2279                 offsetof(struct rte_flow_item_tcp, hdr.dst_port),
2280         },
2281         {
2282                 EFX_MAE_FIELD_TCP_FLAGS_BE,
2283                 /*
2284                  * The values have been picked intentionally since the
2285                  * target MAE field is oversize (16 bit). This mapping
2286                  * relies on the fact that the MAE field is big-endian.
2287                  */
2288                 RTE_SIZEOF_FIELD(struct rte_flow_item_tcp, hdr.data_off) +
2289                 RTE_SIZEOF_FIELD(struct rte_flow_item_tcp, hdr.tcp_flags),
2290                 offsetof(struct rte_flow_item_tcp, hdr.data_off),
2291         },
2292 };
2293
2294 static int
2295 sfc_mae_rule_parse_item_tcp(const struct rte_flow_item *item,
2296                             struct sfc_flow_parse_ctx *ctx,
2297                             struct rte_flow_error *error)
2298 {
2299         struct sfc_mae_parse_ctx *ctx_mae = ctx->mae;
2300         struct sfc_mae_pattern_data *pdata = &ctx_mae->pattern_data;
2301         struct rte_flow_item_tcp supp_mask;
2302         const uint8_t *spec = NULL;
2303         const uint8_t *mask = NULL;
2304         int rc;
2305
2306         /*
2307          * When encountered among outermost items, item TCP is invalid.
2308          * Check which match specification is being constructed now.
2309          */
2310         if (ctx_mae->match_spec != ctx_mae->match_spec_action) {
2311                 return rte_flow_error_set(error, EINVAL,
2312                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
2313                                           "TCP in outer frame is invalid");
2314         }
2315
2316         sfc_mae_item_build_supp_mask(flocs_tcp, RTE_DIM(flocs_tcp),
2317                                      &supp_mask, sizeof(supp_mask));
2318
2319         rc = sfc_flow_parse_init(item,
2320                                  (const void **)&spec, (const void **)&mask,
2321                                  (const void *)&supp_mask,
2322                                  &rte_flow_item_tcp_mask,
2323                                  sizeof(struct rte_flow_item_tcp), error);
2324         if (rc != 0)
2325                 return rc;
2326
2327         pdata->l3_next_proto_restriction_value = IPPROTO_TCP;
2328         pdata->l3_next_proto_restriction_mask = 0xff;
2329
2330         if (spec == NULL)
2331                 return 0;
2332
2333         return sfc_mae_parse_item(flocs_tcp, RTE_DIM(flocs_tcp), spec, mask,
2334                                   ctx_mae, error);
2335 }
2336
2337 static const struct sfc_mae_field_locator flocs_udp[] = {
2338         {
2339                 EFX_MAE_FIELD_L4_SPORT_BE,
2340                 RTE_SIZEOF_FIELD(struct rte_flow_item_udp, hdr.src_port),
2341                 offsetof(struct rte_flow_item_udp, hdr.src_port),
2342         },
2343         {
2344                 EFX_MAE_FIELD_L4_DPORT_BE,
2345                 RTE_SIZEOF_FIELD(struct rte_flow_item_udp, hdr.dst_port),
2346                 offsetof(struct rte_flow_item_udp, hdr.dst_port),
2347         },
2348 };
2349
2350 static int
2351 sfc_mae_rule_parse_item_udp(const struct rte_flow_item *item,
2352                             struct sfc_flow_parse_ctx *ctx,
2353                             struct rte_flow_error *error)
2354 {
2355         struct sfc_mae_parse_ctx *ctx_mae = ctx->mae;
2356         struct sfc_mae_pattern_data *pdata = &ctx_mae->pattern_data;
2357         struct rte_flow_item_udp supp_mask;
2358         const uint8_t *spec = NULL;
2359         const uint8_t *mask = NULL;
2360         int rc;
2361
2362         sfc_mae_item_build_supp_mask(flocs_udp, RTE_DIM(flocs_udp),
2363                                      &supp_mask, sizeof(supp_mask));
2364
2365         rc = sfc_flow_parse_init(item,
2366                                  (const void **)&spec, (const void **)&mask,
2367                                  (const void *)&supp_mask,
2368                                  &rte_flow_item_udp_mask,
2369                                  sizeof(struct rte_flow_item_udp), error);
2370         if (rc != 0)
2371                 return rc;
2372
2373         pdata->l3_next_proto_restriction_value = IPPROTO_UDP;
2374         pdata->l3_next_proto_restriction_mask = 0xff;
2375
2376         if (spec == NULL)
2377                 return 0;
2378
2379         return sfc_mae_parse_item(flocs_udp, RTE_DIM(flocs_udp), spec, mask,
2380                                   ctx_mae, error);
2381 }
2382
2383 static const struct sfc_mae_field_locator flocs_tunnel[] = {
2384         {
2385                 /*
2386                  * The size and offset values are relevant
2387                  * for Geneve and NVGRE, too.
2388                  */
2389                 .size = RTE_SIZEOF_FIELD(struct rte_flow_item_vxlan, vni),
2390                 .ofst = offsetof(struct rte_flow_item_vxlan, vni),
2391         },
2392 };
2393
2394 /*
2395  * An auxiliary registry which allows using non-encap. field IDs
2396  * directly when building a match specification of type ACTION.
2397  *
2398  * See sfc_mae_rule_parse_pattern() and sfc_mae_rule_parse_item_tunnel().
2399  */
2400 static const efx_mae_field_id_t field_ids_no_remap[] = {
2401 #define FIELD_ID_NO_REMAP(_field) \
2402         [EFX_MAE_FIELD_##_field] = EFX_MAE_FIELD_##_field
2403
2404         FIELD_ID_NO_REMAP(ETHER_TYPE_BE),
2405         FIELD_ID_NO_REMAP(ETH_SADDR_BE),
2406         FIELD_ID_NO_REMAP(ETH_DADDR_BE),
2407         FIELD_ID_NO_REMAP(VLAN0_TCI_BE),
2408         FIELD_ID_NO_REMAP(VLAN0_PROTO_BE),
2409         FIELD_ID_NO_REMAP(VLAN1_TCI_BE),
2410         FIELD_ID_NO_REMAP(VLAN1_PROTO_BE),
2411         FIELD_ID_NO_REMAP(SRC_IP4_BE),
2412         FIELD_ID_NO_REMAP(DST_IP4_BE),
2413         FIELD_ID_NO_REMAP(IP_PROTO),
2414         FIELD_ID_NO_REMAP(IP_TOS),
2415         FIELD_ID_NO_REMAP(IP_TTL),
2416         FIELD_ID_NO_REMAP(SRC_IP6_BE),
2417         FIELD_ID_NO_REMAP(DST_IP6_BE),
2418         FIELD_ID_NO_REMAP(L4_SPORT_BE),
2419         FIELD_ID_NO_REMAP(L4_DPORT_BE),
2420         FIELD_ID_NO_REMAP(TCP_FLAGS_BE),
2421         FIELD_ID_NO_REMAP(HAS_OVLAN),
2422         FIELD_ID_NO_REMAP(HAS_IVLAN),
2423
2424 #undef FIELD_ID_NO_REMAP
2425 };
2426
2427 /*
2428  * An auxiliary registry which allows using "ENC" field IDs
2429  * when building a match specification of type OUTER.
2430  *
2431  * See sfc_mae_rule_encap_parse_init().
2432  */
2433 static const efx_mae_field_id_t field_ids_remap_to_encap[] = {
2434 #define FIELD_ID_REMAP_TO_ENCAP(_field) \
2435         [EFX_MAE_FIELD_##_field] = EFX_MAE_FIELD_ENC_##_field
2436
2437         FIELD_ID_REMAP_TO_ENCAP(ETHER_TYPE_BE),
2438         FIELD_ID_REMAP_TO_ENCAP(ETH_SADDR_BE),
2439         FIELD_ID_REMAP_TO_ENCAP(ETH_DADDR_BE),
2440         FIELD_ID_REMAP_TO_ENCAP(VLAN0_TCI_BE),
2441         FIELD_ID_REMAP_TO_ENCAP(VLAN0_PROTO_BE),
2442         FIELD_ID_REMAP_TO_ENCAP(VLAN1_TCI_BE),
2443         FIELD_ID_REMAP_TO_ENCAP(VLAN1_PROTO_BE),
2444         FIELD_ID_REMAP_TO_ENCAP(SRC_IP4_BE),
2445         FIELD_ID_REMAP_TO_ENCAP(DST_IP4_BE),
2446         FIELD_ID_REMAP_TO_ENCAP(IP_PROTO),
2447         FIELD_ID_REMAP_TO_ENCAP(IP_TOS),
2448         FIELD_ID_REMAP_TO_ENCAP(IP_TTL),
2449         FIELD_ID_REMAP_TO_ENCAP(SRC_IP6_BE),
2450         FIELD_ID_REMAP_TO_ENCAP(DST_IP6_BE),
2451         FIELD_ID_REMAP_TO_ENCAP(L4_SPORT_BE),
2452         FIELD_ID_REMAP_TO_ENCAP(L4_DPORT_BE),
2453         FIELD_ID_REMAP_TO_ENCAP(HAS_OVLAN),
2454         FIELD_ID_REMAP_TO_ENCAP(HAS_IVLAN),
2455
2456 #undef FIELD_ID_REMAP_TO_ENCAP
2457 };
2458
2459 static int
2460 sfc_mae_rule_parse_item_tunnel(const struct rte_flow_item *item,
2461                                struct sfc_flow_parse_ctx *ctx,
2462                                struct rte_flow_error *error)
2463 {
2464         struct sfc_mae_parse_ctx *ctx_mae = ctx->mae;
2465         uint8_t vnet_id_v[sizeof(uint32_t)] = {0};
2466         uint8_t vnet_id_m[sizeof(uint32_t)] = {0};
2467         const struct rte_flow_item_vxlan *vxp;
2468         uint8_t supp_mask[sizeof(uint64_t)];
2469         const uint8_t *spec = NULL;
2470         const uint8_t *mask = NULL;
2471         int rc;
2472
2473         if (ctx_mae->ft_rule_type == SFC_FT_RULE_GROUP) {
2474                 /*
2475                  * As a workaround, pattern processing has started from
2476                  * this (tunnel) item. No pattern data to process yet.
2477                  */
2478         } else {
2479                 /*
2480                  * We're about to start processing inner frame items.
2481                  * Process pattern data that has been deferred so far
2482                  * and reset pattern data storage.
2483                  */
2484                 rc = sfc_mae_rule_process_pattern_data(ctx_mae, error);
2485                 if (rc != 0)
2486                         return rc;
2487         }
2488
2489         memset(&ctx_mae->pattern_data, 0, sizeof(ctx_mae->pattern_data));
2490
2491         sfc_mae_item_build_supp_mask(flocs_tunnel, RTE_DIM(flocs_tunnel),
2492                                      &supp_mask, sizeof(supp_mask));
2493
2494         /*
2495          * This tunnel item was preliminarily detected by
2496          * sfc_mae_rule_encap_parse_init(). Default mask
2497          * was also picked by that helper. Use it here.
2498          */
2499         rc = sfc_flow_parse_init(item,
2500                                  (const void **)&spec, (const void **)&mask,
2501                                  (const void *)&supp_mask,
2502                                  ctx_mae->tunnel_def_mask,
2503                                  ctx_mae->tunnel_def_mask_size,  error);
2504         if (rc != 0)
2505                 return rc;
2506
2507         /*
2508          * This item and later ones comprise a
2509          * match specification of type ACTION.
2510          */
2511         ctx_mae->match_spec = ctx_mae->match_spec_action;
2512
2513         /* This item and later ones use non-encap. EFX MAE field IDs. */
2514         ctx_mae->field_ids_remap = field_ids_no_remap;
2515
2516         if (spec == NULL)
2517                 return 0;
2518
2519         /*
2520          * Field EFX_MAE_FIELD_ENC_VNET_ID_BE is a 32-bit one.
2521          * Copy 24-bit VNI, which is BE, at offset 1 in it.
2522          * The extra byte is 0 both in the mask and in the value.
2523          */
2524         vxp = (const struct rte_flow_item_vxlan *)spec;
2525         memcpy(vnet_id_v + 1, &vxp->vni, sizeof(vxp->vni));
2526
2527         vxp = (const struct rte_flow_item_vxlan *)mask;
2528         memcpy(vnet_id_m + 1, &vxp->vni, sizeof(vxp->vni));
2529
2530         rc = efx_mae_match_spec_field_set(ctx_mae->match_spec,
2531                                           EFX_MAE_FIELD_ENC_VNET_ID_BE,
2532                                           sizeof(vnet_id_v), vnet_id_v,
2533                                           sizeof(vnet_id_m), vnet_id_m);
2534         if (rc != 0) {
2535                 rc = rte_flow_error_set(error, rc, RTE_FLOW_ERROR_TYPE_ITEM,
2536                                         item, "Failed to set VXLAN VNI");
2537         }
2538
2539         return rc;
2540 }
2541
2542 static const struct sfc_flow_item sfc_flow_items[] = {
2543         {
2544                 .type = RTE_FLOW_ITEM_TYPE_MARK,
2545                 .name = "MARK",
2546                 .prev_layer = SFC_FLOW_ITEM_ANY_LAYER,
2547                 .layer = SFC_FLOW_ITEM_ANY_LAYER,
2548                 .ctx_type = SFC_FLOW_PARSE_CTX_MAE,
2549                 .parse = sfc_mae_rule_parse_item_mark,
2550         },
2551         {
2552                 .type = RTE_FLOW_ITEM_TYPE_PORT_ID,
2553                 .name = "PORT_ID",
2554                 /*
2555                  * In terms of RTE flow, this item is a META one,
2556                  * and its position in the pattern is don't care.
2557                  */
2558                 .prev_layer = SFC_FLOW_ITEM_ANY_LAYER,
2559                 .layer = SFC_FLOW_ITEM_ANY_LAYER,
2560                 .ctx_type = SFC_FLOW_PARSE_CTX_MAE,
2561                 .parse = sfc_mae_rule_parse_item_port_id,
2562         },
2563         {
2564                 .type = RTE_FLOW_ITEM_TYPE_PORT_REPRESENTOR,
2565                 .name = "PORT_REPRESENTOR",
2566                 /*
2567                  * In terms of RTE flow, this item is a META one,
2568                  * and its position in the pattern is don't care.
2569                  */
2570                 .prev_layer = SFC_FLOW_ITEM_ANY_LAYER,
2571                 .layer = SFC_FLOW_ITEM_ANY_LAYER,
2572                 .ctx_type = SFC_FLOW_PARSE_CTX_MAE,
2573                 .parse = sfc_mae_rule_parse_item_ethdev_based,
2574         },
2575         {
2576                 .type = RTE_FLOW_ITEM_TYPE_REPRESENTED_PORT,
2577                 .name = "REPRESENTED_PORT",
2578                 /*
2579                  * In terms of RTE flow, this item is a META one,
2580                  * and its position in the pattern is don't care.
2581                  */
2582                 .prev_layer = SFC_FLOW_ITEM_ANY_LAYER,
2583                 .layer = SFC_FLOW_ITEM_ANY_LAYER,
2584                 .ctx_type = SFC_FLOW_PARSE_CTX_MAE,
2585                 .parse = sfc_mae_rule_parse_item_ethdev_based,
2586         },
2587         {
2588                 .type = RTE_FLOW_ITEM_TYPE_PHY_PORT,
2589                 .name = "PHY_PORT",
2590                 /*
2591                  * In terms of RTE flow, this item is a META one,
2592                  * and its position in the pattern is don't care.
2593                  */
2594                 .prev_layer = SFC_FLOW_ITEM_ANY_LAYER,
2595                 .layer = SFC_FLOW_ITEM_ANY_LAYER,
2596                 .ctx_type = SFC_FLOW_PARSE_CTX_MAE,
2597                 .parse = sfc_mae_rule_parse_item_phy_port,
2598         },
2599         {
2600                 .type = RTE_FLOW_ITEM_TYPE_PF,
2601                 .name = "PF",
2602                 /*
2603                  * In terms of RTE flow, this item is a META one,
2604                  * and its position in the pattern is don't care.
2605                  */
2606                 .prev_layer = SFC_FLOW_ITEM_ANY_LAYER,
2607                 .layer = SFC_FLOW_ITEM_ANY_LAYER,
2608                 .ctx_type = SFC_FLOW_PARSE_CTX_MAE,
2609                 .parse = sfc_mae_rule_parse_item_pf,
2610         },
2611         {
2612                 .type = RTE_FLOW_ITEM_TYPE_VF,
2613                 .name = "VF",
2614                 /*
2615                  * In terms of RTE flow, this item is a META one,
2616                  * and its position in the pattern is don't care.
2617                  */
2618                 .prev_layer = SFC_FLOW_ITEM_ANY_LAYER,
2619                 .layer = SFC_FLOW_ITEM_ANY_LAYER,
2620                 .ctx_type = SFC_FLOW_PARSE_CTX_MAE,
2621                 .parse = sfc_mae_rule_parse_item_vf,
2622         },
2623         {
2624                 .type = RTE_FLOW_ITEM_TYPE_ETH,
2625                 .name = "ETH",
2626                 .prev_layer = SFC_FLOW_ITEM_START_LAYER,
2627                 .layer = SFC_FLOW_ITEM_L2,
2628                 .ctx_type = SFC_FLOW_PARSE_CTX_MAE,
2629                 .parse = sfc_mae_rule_parse_item_eth,
2630         },
2631         {
2632                 .type = RTE_FLOW_ITEM_TYPE_VLAN,
2633                 .name = "VLAN",
2634                 .prev_layer = SFC_FLOW_ITEM_L2,
2635                 .layer = SFC_FLOW_ITEM_L2,
2636                 .ctx_type = SFC_FLOW_PARSE_CTX_MAE,
2637                 .parse = sfc_mae_rule_parse_item_vlan,
2638         },
2639         {
2640                 .type = RTE_FLOW_ITEM_TYPE_IPV4,
2641                 .name = "IPV4",
2642                 .prev_layer = SFC_FLOW_ITEM_L2,
2643                 .layer = SFC_FLOW_ITEM_L3,
2644                 .ctx_type = SFC_FLOW_PARSE_CTX_MAE,
2645                 .parse = sfc_mae_rule_parse_item_ipv4,
2646         },
2647         {
2648                 .type = RTE_FLOW_ITEM_TYPE_IPV6,
2649                 .name = "IPV6",
2650                 .prev_layer = SFC_FLOW_ITEM_L2,
2651                 .layer = SFC_FLOW_ITEM_L3,
2652                 .ctx_type = SFC_FLOW_PARSE_CTX_MAE,
2653                 .parse = sfc_mae_rule_parse_item_ipv6,
2654         },
2655         {
2656                 .type = RTE_FLOW_ITEM_TYPE_TCP,
2657                 .name = "TCP",
2658                 .prev_layer = SFC_FLOW_ITEM_L3,
2659                 .layer = SFC_FLOW_ITEM_L4,
2660                 .ctx_type = SFC_FLOW_PARSE_CTX_MAE,
2661                 .parse = sfc_mae_rule_parse_item_tcp,
2662         },
2663         {
2664                 .type = RTE_FLOW_ITEM_TYPE_UDP,
2665                 .name = "UDP",
2666                 .prev_layer = SFC_FLOW_ITEM_L3,
2667                 .layer = SFC_FLOW_ITEM_L4,
2668                 .ctx_type = SFC_FLOW_PARSE_CTX_MAE,
2669                 .parse = sfc_mae_rule_parse_item_udp,
2670         },
2671         {
2672                 .type = RTE_FLOW_ITEM_TYPE_VXLAN,
2673                 .name = "VXLAN",
2674                 .prev_layer = SFC_FLOW_ITEM_L4,
2675                 .layer = SFC_FLOW_ITEM_START_LAYER,
2676                 .ctx_type = SFC_FLOW_PARSE_CTX_MAE,
2677                 .parse = sfc_mae_rule_parse_item_tunnel,
2678         },
2679         {
2680                 .type = RTE_FLOW_ITEM_TYPE_GENEVE,
2681                 .name = "GENEVE",
2682                 .prev_layer = SFC_FLOW_ITEM_L4,
2683                 .layer = SFC_FLOW_ITEM_START_LAYER,
2684                 .ctx_type = SFC_FLOW_PARSE_CTX_MAE,
2685                 .parse = sfc_mae_rule_parse_item_tunnel,
2686         },
2687         {
2688                 .type = RTE_FLOW_ITEM_TYPE_NVGRE,
2689                 .name = "NVGRE",
2690                 .prev_layer = SFC_FLOW_ITEM_L3,
2691                 .layer = SFC_FLOW_ITEM_START_LAYER,
2692                 .ctx_type = SFC_FLOW_PARSE_CTX_MAE,
2693                 .parse = sfc_mae_rule_parse_item_tunnel,
2694         },
2695 };
2696
2697 static int
2698 sfc_mae_rule_process_outer(struct sfc_adapter *sa,
2699                            struct sfc_mae_parse_ctx *ctx,
2700                            struct sfc_mae_outer_rule **rulep,
2701                            struct rte_flow_error *error)
2702 {
2703         efx_mae_rule_id_t invalid_rule_id = { .id = EFX_MAE_RSRC_ID_INVALID };
2704         int rc;
2705
2706         if (ctx->encap_type == EFX_TUNNEL_PROTOCOL_NONE) {
2707                 *rulep = NULL;
2708                 goto no_or_id;
2709         }
2710
2711         SFC_ASSERT(ctx->match_spec_outer != NULL);
2712
2713         if (!efx_mae_match_spec_is_valid(sa->nic, ctx->match_spec_outer)) {
2714                 return rte_flow_error_set(error, ENOTSUP,
2715                                           RTE_FLOW_ERROR_TYPE_ITEM, NULL,
2716                                           "Inconsistent pattern (outer)");
2717         }
2718
2719         *rulep = sfc_mae_outer_rule_attach(sa, ctx->match_spec_outer,
2720                                            ctx->encap_type);
2721         if (*rulep != NULL) {
2722                 efx_mae_match_spec_fini(sa->nic, ctx->match_spec_outer);
2723         } else {
2724                 rc = sfc_mae_outer_rule_add(sa, ctx->match_spec_outer,
2725                                             ctx->encap_type, rulep);
2726                 if (rc != 0) {
2727                         return rte_flow_error_set(error, rc,
2728                                         RTE_FLOW_ERROR_TYPE_ITEM, NULL,
2729                                         "Failed to process the pattern");
2730                 }
2731         }
2732
2733         /* The spec has now been tracked by the outer rule entry. */
2734         ctx->match_spec_outer = NULL;
2735
2736 no_or_id:
2737         switch (ctx->ft_rule_type) {
2738         case SFC_FT_RULE_NONE:
2739                 break;
2740         case SFC_FT_RULE_JUMP:
2741                 /* No action rule */
2742                 return 0;
2743         case SFC_FT_RULE_GROUP:
2744                 /*
2745                  * Match on recirculation ID rather than
2746                  * on the outer rule allocation handle.
2747                  */
2748                 rc = efx_mae_match_spec_recirc_id_set(ctx->match_spec_action,
2749                                         SFC_FT_ID_TO_TUNNEL_MARK(ctx->ft->id));
2750                 if (rc != 0) {
2751                         return rte_flow_error_set(error, rc,
2752                                         RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
2753                                         "tunnel offload: GROUP: AR: failed to request match on RECIRC_ID");
2754                 }
2755                 return 0;
2756         default:
2757                 SFC_ASSERT(B_FALSE);
2758         }
2759
2760         /*
2761          * In MAE, lookup sequence comprises outer parse, outer rule lookup,
2762          * inner parse (when some outer rule is hit) and action rule lookup.
2763          * If the currently processed flow does not come with an outer rule,
2764          * its action rule must be available only for packets which miss in
2765          * outer rule table. Set OR_ID match field to 0xffffffff/0xffffffff
2766          * in the action rule specification; this ensures correct behaviour.
2767          *
2768          * If, on the other hand, this flow does have an outer rule, its ID
2769          * may be unknown at the moment (not yet allocated), but OR_ID mask
2770          * has to be set to 0xffffffff anyway for correct class comparisons.
2771          * When the outer rule has been allocated, this match field will be
2772          * overridden by sfc_mae_outer_rule_enable() to use the right value.
2773          */
2774         rc = efx_mae_match_spec_outer_rule_id_set(ctx->match_spec_action,
2775                                                   &invalid_rule_id);
2776         if (rc != 0) {
2777                 if (*rulep != NULL)
2778                         sfc_mae_outer_rule_del(sa, *rulep);
2779
2780                 *rulep = NULL;
2781
2782                 return rte_flow_error_set(error, rc,
2783                                           RTE_FLOW_ERROR_TYPE_ITEM, NULL,
2784                                           "Failed to process the pattern");
2785         }
2786
2787         return 0;
2788 }
2789
2790 static int
2791 sfc_mae_rule_preparse_item_mark(const struct rte_flow_item_mark *spec,
2792                                 struct sfc_mae_parse_ctx *ctx)
2793 {
2794         struct sfc_flow_tunnel *ft;
2795         uint32_t user_mark;
2796
2797         if (spec == NULL) {
2798                 sfc_err(ctx->sa, "tunnel offload: GROUP: NULL spec in item MARK");
2799                 return EINVAL;
2800         }
2801
2802         ft = sfc_flow_tunnel_pick(ctx->sa, spec->id);
2803         if (ft == NULL) {
2804                 sfc_err(ctx->sa, "tunnel offload: GROUP: invalid tunnel");
2805                 return EINVAL;
2806         }
2807
2808         if (ft->refcnt == 0) {
2809                 sfc_err(ctx->sa, "tunnel offload: GROUP: tunnel=%u does not exist",
2810                         ft->id);
2811                 return ENOENT;
2812         }
2813
2814         user_mark = SFC_FT_GET_USER_MARK(spec->id);
2815         if (user_mark != 0) {
2816                 sfc_err(ctx->sa, "tunnel offload: GROUP: invalid item MARK");
2817                 return EINVAL;
2818         }
2819
2820         sfc_dbg(ctx->sa, "tunnel offload: GROUP: detected");
2821
2822         ctx->ft_rule_type = SFC_FT_RULE_GROUP;
2823         ctx->ft = ft;
2824
2825         return 0;
2826 }
2827
2828 static int
2829 sfc_mae_rule_encap_parse_init(struct sfc_adapter *sa,
2830                               struct sfc_mae_parse_ctx *ctx,
2831                               struct rte_flow_error *error)
2832 {
2833         const struct rte_flow_item *pattern = ctx->pattern;
2834         struct sfc_mae *mae = &sa->mae;
2835         uint8_t recirc_id = 0;
2836         int rc;
2837
2838         if (pattern == NULL) {
2839                 rte_flow_error_set(error, EINVAL,
2840                                    RTE_FLOW_ERROR_TYPE_ITEM_NUM, NULL,
2841                                    "NULL pattern");
2842                 return -rte_errno;
2843         }
2844
2845         for (;;) {
2846                 switch (pattern->type) {
2847                 case RTE_FLOW_ITEM_TYPE_MARK:
2848                         rc = sfc_mae_rule_preparse_item_mark(pattern->spec,
2849                                                              ctx);
2850                         if (rc != 0) {
2851                                 return rte_flow_error_set(error, rc,
2852                                                   RTE_FLOW_ERROR_TYPE_ITEM,
2853                                                   pattern, "tunnel offload: GROUP: invalid item MARK");
2854                         }
2855                         ++pattern;
2856                         continue;
2857                 case RTE_FLOW_ITEM_TYPE_VXLAN:
2858                         ctx->encap_type = EFX_TUNNEL_PROTOCOL_VXLAN;
2859                         ctx->tunnel_def_mask = &rte_flow_item_vxlan_mask;
2860                         ctx->tunnel_def_mask_size =
2861                                 sizeof(rte_flow_item_vxlan_mask);
2862                         break;
2863                 case RTE_FLOW_ITEM_TYPE_GENEVE:
2864                         ctx->encap_type = EFX_TUNNEL_PROTOCOL_GENEVE;
2865                         ctx->tunnel_def_mask = &rte_flow_item_geneve_mask;
2866                         ctx->tunnel_def_mask_size =
2867                                 sizeof(rte_flow_item_geneve_mask);
2868                         break;
2869                 case RTE_FLOW_ITEM_TYPE_NVGRE:
2870                         ctx->encap_type = EFX_TUNNEL_PROTOCOL_NVGRE;
2871                         ctx->tunnel_def_mask = &rte_flow_item_nvgre_mask;
2872                         ctx->tunnel_def_mask_size =
2873                                 sizeof(rte_flow_item_nvgre_mask);
2874                         break;
2875                 case RTE_FLOW_ITEM_TYPE_END:
2876                         break;
2877                 default:
2878                         ++pattern;
2879                         continue;
2880                 };
2881
2882                 break;
2883         }
2884
2885         switch (ctx->ft_rule_type) {
2886         case SFC_FT_RULE_NONE:
2887                 if (pattern->type == RTE_FLOW_ITEM_TYPE_END)
2888                         return 0;
2889                 break;
2890         case SFC_FT_RULE_JUMP:
2891                 if (pattern->type != RTE_FLOW_ITEM_TYPE_END) {
2892                         return rte_flow_error_set(error, ENOTSUP,
2893                                                   RTE_FLOW_ERROR_TYPE_ITEM,
2894                                                   pattern, "tunnel offload: JUMP: invalid item");
2895                 }
2896                 ctx->encap_type = ctx->ft->encap_type;
2897                 break;
2898         case SFC_FT_RULE_GROUP:
2899                 if (pattern->type == RTE_FLOW_ITEM_TYPE_END) {
2900                         return rte_flow_error_set(error, EINVAL,
2901                                                   RTE_FLOW_ERROR_TYPE_ITEM,
2902                                                   NULL, "tunnel offload: GROUP: missing tunnel item");
2903                 } else if (ctx->encap_type != ctx->ft->encap_type) {
2904                         return rte_flow_error_set(error, EINVAL,
2905                                                   RTE_FLOW_ERROR_TYPE_ITEM,
2906                                                   pattern, "tunnel offload: GROUP: tunnel type mismatch");
2907                 }
2908
2909                 /*
2910                  * The HW/FW hasn't got support for the use of "ENC" fields in
2911                  * action rules (except the VNET_ID one) yet. As a workaround,
2912                  * start parsing the pattern from the tunnel item.
2913                  */
2914                 ctx->pattern = pattern;
2915                 break;
2916         default:
2917                 SFC_ASSERT(B_FALSE);
2918                 break;
2919         }
2920
2921         if ((mae->encap_types_supported & (1U << ctx->encap_type)) == 0) {
2922                 return rte_flow_error_set(error, ENOTSUP,
2923                                           RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
2924                                           "OR: unsupported tunnel type");
2925         }
2926
2927         switch (ctx->ft_rule_type) {
2928         case SFC_FT_RULE_JUMP:
2929                 recirc_id = SFC_FT_ID_TO_TUNNEL_MARK(ctx->ft->id);
2930                 /* FALLTHROUGH */
2931         case SFC_FT_RULE_NONE:
2932                 if (ctx->priority >= mae->nb_outer_rule_prios_max) {
2933                         return rte_flow_error_set(error, ENOTSUP,
2934                                         RTE_FLOW_ERROR_TYPE_ATTR_PRIORITY,
2935                                         NULL, "OR: unsupported priority level");
2936                 }
2937
2938                 rc = efx_mae_match_spec_init(sa->nic,
2939                                              EFX_MAE_RULE_OUTER, ctx->priority,
2940                                              &ctx->match_spec_outer);
2941                 if (rc != 0) {
2942                         return rte_flow_error_set(error, rc,
2943                                 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
2944                                 "OR: failed to initialise the match specification");
2945                 }
2946
2947                 /*
2948                  * Outermost items comprise a match
2949                  * specification of type OUTER.
2950                  */
2951                 ctx->match_spec = ctx->match_spec_outer;
2952
2953                 /* Outermost items use "ENC" EFX MAE field IDs. */
2954                 ctx->field_ids_remap = field_ids_remap_to_encap;
2955
2956                 rc = efx_mae_outer_rule_recirc_id_set(ctx->match_spec,
2957                                                       recirc_id);
2958                 if (rc != 0) {
2959                         return rte_flow_error_set(error, rc,
2960                                         RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
2961                                         "OR: failed to initialise RECIRC_ID");
2962                 }
2963                 break;
2964         case SFC_FT_RULE_GROUP:
2965                 /* Outermost items -> "ENC" match fields in the action rule. */
2966                 ctx->field_ids_remap = field_ids_remap_to_encap;
2967                 ctx->match_spec = ctx->match_spec_action;
2968
2969                 /* No own outer rule; match on JUMP OR's RECIRC_ID is used. */
2970                 ctx->encap_type = EFX_TUNNEL_PROTOCOL_NONE;
2971                 break;
2972         default:
2973                 SFC_ASSERT(B_FALSE);
2974                 break;
2975         }
2976
2977         return 0;
2978 }
2979
2980 static void
2981 sfc_mae_rule_encap_parse_fini(struct sfc_adapter *sa,
2982                               struct sfc_mae_parse_ctx *ctx)
2983 {
2984         if (ctx->encap_type == EFX_TUNNEL_PROTOCOL_NONE)
2985                 return;
2986
2987         if (ctx->match_spec_outer != NULL)
2988                 efx_mae_match_spec_fini(sa->nic, ctx->match_spec_outer);
2989 }
2990
2991 int
2992 sfc_mae_rule_parse_pattern(struct sfc_adapter *sa,
2993                            const struct rte_flow_item pattern[],
2994                            struct sfc_flow_spec_mae *spec,
2995                            struct rte_flow_error *error)
2996 {
2997         struct sfc_mae_parse_ctx ctx_mae;
2998         unsigned int priority_shift = 0;
2999         struct sfc_flow_parse_ctx ctx;
3000         int rc;
3001
3002         memset(&ctx_mae, 0, sizeof(ctx_mae));
3003         ctx_mae.ft_rule_type = spec->ft_rule_type;
3004         ctx_mae.priority = spec->priority;
3005         ctx_mae.ft = spec->ft;
3006         ctx_mae.sa = sa;
3007
3008         switch (ctx_mae.ft_rule_type) {
3009         case SFC_FT_RULE_JUMP:
3010                 /*
3011                  * By design, this flow should be represented solely by the
3012                  * outer rule. But the HW/FW hasn't got support for setting
3013                  * Rx mark from RECIRC_ID on outer rule lookup yet. Neither
3014                  * does it support outer rule counters. As a workaround, an
3015                  * action rule of lower priority is used to do the job.
3016                  */
3017                 priority_shift = 1;
3018
3019                 /* FALLTHROUGH */
3020         case SFC_FT_RULE_GROUP:
3021                 if (ctx_mae.priority != 0) {
3022                         /*
3023                          * Because of the above workaround, deny the
3024                          * use of priorities to JUMP and GROUP rules.
3025                          */
3026                         rc = rte_flow_error_set(error, ENOTSUP,
3027                                 RTE_FLOW_ERROR_TYPE_ATTR_PRIORITY, NULL,
3028                                 "tunnel offload: priorities are not supported");
3029                         goto fail_priority_check;
3030                 }
3031
3032                 /* FALLTHROUGH */
3033         case SFC_FT_RULE_NONE:
3034                 rc = efx_mae_match_spec_init(sa->nic, EFX_MAE_RULE_ACTION,
3035                                              spec->priority + priority_shift,
3036                                              &ctx_mae.match_spec_action);
3037                 if (rc != 0) {
3038                         rc = rte_flow_error_set(error, rc,
3039                                 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
3040                                 "AR: failed to initialise the match specification");
3041                         goto fail_init_match_spec_action;
3042                 }
3043                 break;
3044         default:
3045                 SFC_ASSERT(B_FALSE);
3046                 break;
3047         }
3048
3049         /*
3050          * As a preliminary setting, assume that there is no encapsulation
3051          * in the pattern. That is, pattern items are about to comprise a
3052          * match specification of type ACTION and use non-encap. field IDs.
3053          *
3054          * sfc_mae_rule_encap_parse_init() below may override this.
3055          */
3056         ctx_mae.encap_type = EFX_TUNNEL_PROTOCOL_NONE;
3057         ctx_mae.match_spec = ctx_mae.match_spec_action;
3058         ctx_mae.field_ids_remap = field_ids_no_remap;
3059         ctx_mae.pattern = pattern;
3060
3061         ctx.type = SFC_FLOW_PARSE_CTX_MAE;
3062         ctx.mae = &ctx_mae;
3063
3064         rc = sfc_mae_rule_encap_parse_init(sa, &ctx_mae, error);
3065         if (rc != 0)
3066                 goto fail_encap_parse_init;
3067
3068         /*
3069          * sfc_mae_rule_encap_parse_init() may have detected tunnel offload
3070          * GROUP rule. Remember its properties for later use.
3071          */
3072         spec->ft_rule_type = ctx_mae.ft_rule_type;
3073         spec->ft = ctx_mae.ft;
3074
3075         rc = sfc_flow_parse_pattern(sa, sfc_flow_items, RTE_DIM(sfc_flow_items),
3076                                     ctx_mae.pattern, &ctx, error);
3077         if (rc != 0)
3078                 goto fail_parse_pattern;
3079
3080         rc = sfc_mae_rule_process_pattern_data(&ctx_mae, error);
3081         if (rc != 0)
3082                 goto fail_process_pattern_data;
3083
3084         rc = sfc_mae_rule_process_outer(sa, &ctx_mae, &spec->outer_rule, error);
3085         if (rc != 0)
3086                 goto fail_process_outer;
3087
3088         if (ctx_mae.match_spec_action != NULL &&
3089             !efx_mae_match_spec_is_valid(sa->nic, ctx_mae.match_spec_action)) {
3090                 rc = rte_flow_error_set(error, ENOTSUP,
3091                                         RTE_FLOW_ERROR_TYPE_ITEM, NULL,
3092                                         "Inconsistent pattern");
3093                 goto fail_validate_match_spec_action;
3094         }
3095
3096         spec->match_spec = ctx_mae.match_spec_action;
3097
3098         return 0;
3099
3100 fail_validate_match_spec_action:
3101 fail_process_outer:
3102 fail_process_pattern_data:
3103 fail_parse_pattern:
3104         sfc_mae_rule_encap_parse_fini(sa, &ctx_mae);
3105
3106 fail_encap_parse_init:
3107         if (ctx_mae.match_spec_action != NULL)
3108                 efx_mae_match_spec_fini(sa->nic, ctx_mae.match_spec_action);
3109
3110 fail_init_match_spec_action:
3111 fail_priority_check:
3112         return rc;
3113 }
3114
3115 static int
3116 sfc_mae_rule_parse_action_set_mac(struct sfc_adapter *sa,
3117                                   enum sfc_mae_mac_addr_type type,
3118                                   const struct rte_flow_action_set_mac *conf,
3119                                   struct sfc_mae_aset_ctx *ctx,
3120                                   struct rte_flow_error *error)
3121 {
3122         struct sfc_mae_mac_addr **mac_addrp;
3123         int rc;
3124
3125         if (conf == NULL) {
3126                 return rte_flow_error_set(error, EINVAL,
3127                                 RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL,
3128                                 "the MAC address entry definition is NULL");
3129         }
3130
3131         switch (type) {
3132         case SFC_MAE_MAC_ADDR_DST:
3133                 rc = efx_mae_action_set_populate_set_dst_mac(ctx->spec);
3134                 mac_addrp = &ctx->dst_mac;
3135                 break;
3136         case SFC_MAE_MAC_ADDR_SRC:
3137                 rc = efx_mae_action_set_populate_set_src_mac(ctx->spec);
3138                 mac_addrp = &ctx->src_mac;
3139                 break;
3140         default:
3141                 rc = EINVAL;
3142                 break;
3143         }
3144
3145         if (rc != 0)
3146                 goto error;
3147
3148         *mac_addrp = sfc_mae_mac_addr_attach(sa, conf->mac_addr);
3149         if (*mac_addrp != NULL)
3150                 return 0;
3151
3152         rc = sfc_mae_mac_addr_add(sa, conf->mac_addr, mac_addrp);
3153         if (rc != 0)
3154                 goto error;
3155
3156         return 0;
3157
3158 error:
3159         return rte_flow_error_set(error, rc, RTE_FLOW_ERROR_TYPE_ACTION,
3160                                   NULL, "failed to request set MAC action");
3161 }
3162
3163 /*
3164  * An action supported by MAE may correspond to a bundle of RTE flow actions,
3165  * in example, VLAN_PUSH = OF_PUSH_VLAN + OF_VLAN_SET_VID + OF_VLAN_SET_PCP.
3166  * That is, related RTE flow actions need to be tracked as parts of a whole
3167  * so that they can be combined into a single action and submitted to MAE
3168  * representation of a given rule's action set.
3169  *
3170  * Each RTE flow action provided by an application gets classified as
3171  * one belonging to some bundle type. If an action is not supposed to
3172  * belong to any bundle, or if this action is END, it is described as
3173  * one belonging to a dummy bundle of type EMPTY.
3174  *
3175  * A currently tracked bundle will be submitted if a repeating
3176  * action or an action of different bundle type follows.
3177  */
3178
3179 enum sfc_mae_actions_bundle_type {
3180         SFC_MAE_ACTIONS_BUNDLE_EMPTY = 0,
3181         SFC_MAE_ACTIONS_BUNDLE_VLAN_PUSH,
3182 };
3183
3184 struct sfc_mae_actions_bundle {
3185         enum sfc_mae_actions_bundle_type        type;
3186
3187         /* Indicates actions already tracked by the current bundle */
3188         uint64_t                                actions_mask;
3189
3190         /* Parameters used by SFC_MAE_ACTIONS_BUNDLE_VLAN_PUSH */
3191         rte_be16_t                              vlan_push_tpid;
3192         rte_be16_t                              vlan_push_tci;
3193 };
3194
3195 /*
3196  * Combine configuration of RTE flow actions tracked by the bundle into a
3197  * single action and submit the result to MAE action set specification.
3198  * Do nothing in the case of dummy action bundle.
3199  */
3200 static int
3201 sfc_mae_actions_bundle_submit(const struct sfc_mae_actions_bundle *bundle,
3202                               efx_mae_actions_t *spec)
3203 {
3204         int rc = 0;
3205
3206         switch (bundle->type) {
3207         case SFC_MAE_ACTIONS_BUNDLE_EMPTY:
3208                 break;
3209         case SFC_MAE_ACTIONS_BUNDLE_VLAN_PUSH:
3210                 rc = efx_mae_action_set_populate_vlan_push(
3211                         spec, bundle->vlan_push_tpid, bundle->vlan_push_tci);
3212                 break;
3213         default:
3214                 SFC_ASSERT(B_FALSE);
3215                 break;
3216         }
3217
3218         return rc;
3219 }
3220
3221 /*
3222  * Given the type of the next RTE flow action in the line, decide
3223  * whether a new bundle is about to start, and, if this is the case,
3224  * submit and reset the current bundle.
3225  */
3226 static int
3227 sfc_mae_actions_bundle_sync(const struct rte_flow_action *action,
3228                             struct sfc_mae_actions_bundle *bundle,
3229                             efx_mae_actions_t *spec,
3230                             struct rte_flow_error *error)
3231 {
3232         enum sfc_mae_actions_bundle_type bundle_type_new;
3233         int rc;
3234
3235         switch (action->type) {
3236         case RTE_FLOW_ACTION_TYPE_OF_PUSH_VLAN:
3237         case RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_VID:
3238         case RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_PCP:
3239                 bundle_type_new = SFC_MAE_ACTIONS_BUNDLE_VLAN_PUSH;
3240                 break;
3241         default:
3242                 /*
3243                  * Self-sufficient actions, including END, are handled in this
3244                  * case. No checks for unsupported actions are needed here
3245                  * because parsing doesn't occur at this point.
3246                  */
3247                 bundle_type_new = SFC_MAE_ACTIONS_BUNDLE_EMPTY;
3248                 break;
3249         }
3250
3251         if (bundle_type_new != bundle->type ||
3252             (bundle->actions_mask & (1ULL << action->type)) != 0) {
3253                 rc = sfc_mae_actions_bundle_submit(bundle, spec);
3254                 if (rc != 0)
3255                         goto fail_submit;
3256
3257                 memset(bundle, 0, sizeof(*bundle));
3258         }
3259
3260         bundle->type = bundle_type_new;
3261
3262         return 0;
3263
3264 fail_submit:
3265         return rte_flow_error_set(error, rc,
3266                         RTE_FLOW_ERROR_TYPE_ACTION, NULL,
3267                         "Failed to request the (group of) action(s)");
3268 }
3269
3270 static void
3271 sfc_mae_rule_parse_action_of_push_vlan(
3272                             const struct rte_flow_action_of_push_vlan *conf,
3273                             struct sfc_mae_actions_bundle *bundle)
3274 {
3275         bundle->vlan_push_tpid = conf->ethertype;
3276 }
3277
3278 static void
3279 sfc_mae_rule_parse_action_of_set_vlan_vid(
3280                             const struct rte_flow_action_of_set_vlan_vid *conf,
3281                             struct sfc_mae_actions_bundle *bundle)
3282 {
3283         bundle->vlan_push_tci |= (conf->vlan_vid &
3284                                   rte_cpu_to_be_16(RTE_LEN2MASK(12, uint16_t)));
3285 }
3286
3287 static void
3288 sfc_mae_rule_parse_action_of_set_vlan_pcp(
3289                             const struct rte_flow_action_of_set_vlan_pcp *conf,
3290                             struct sfc_mae_actions_bundle *bundle)
3291 {
3292         uint16_t vlan_tci_pcp = (uint16_t)(conf->vlan_pcp &
3293                                            RTE_LEN2MASK(3, uint8_t)) << 13;
3294
3295         bundle->vlan_push_tci |= rte_cpu_to_be_16(vlan_tci_pcp);
3296 }
3297
3298 struct sfc_mae_parsed_item {
3299         const struct rte_flow_item      *item;
3300         size_t                          proto_header_ofst;
3301         size_t                          proto_header_size;
3302 };
3303
3304 /*
3305  * For each 16-bit word of the given header, override
3306  * bits enforced by the corresponding 16-bit mask.
3307  */
3308 static void
3309 sfc_mae_header_force_item_masks(uint8_t *header_buf,
3310                                 const struct sfc_mae_parsed_item *parsed_items,
3311                                 unsigned int nb_parsed_items)
3312 {
3313         unsigned int item_idx;
3314
3315         for (item_idx = 0; item_idx < nb_parsed_items; ++item_idx) {
3316                 const struct sfc_mae_parsed_item *parsed_item;
3317                 const struct rte_flow_item *item;
3318                 size_t proto_header_size;
3319                 size_t ofst;
3320
3321                 parsed_item = &parsed_items[item_idx];
3322                 proto_header_size = parsed_item->proto_header_size;
3323                 item = parsed_item->item;
3324
3325                 for (ofst = 0; ofst < proto_header_size;
3326                      ofst += sizeof(rte_be16_t)) {
3327                         rte_be16_t *wp = RTE_PTR_ADD(header_buf, ofst);
3328                         const rte_be16_t *w_maskp;
3329                         const rte_be16_t *w_specp;
3330
3331                         w_maskp = RTE_PTR_ADD(item->mask, ofst);
3332                         w_specp = RTE_PTR_ADD(item->spec, ofst);
3333
3334                         *wp &= ~(*w_maskp);
3335                         *wp |= (*w_specp & *w_maskp);
3336                 }
3337
3338                 header_buf += proto_header_size;
3339         }
3340 }
3341
3342 #define SFC_IPV4_TTL_DEF        0x40
3343 #define SFC_IPV6_VTC_FLOW_DEF   0x60000000
3344 #define SFC_IPV6_HOP_LIMITS_DEF 0xff
3345 #define SFC_VXLAN_FLAGS_DEF     0x08000000
3346
3347 static int
3348 sfc_mae_rule_parse_action_vxlan_encap(
3349                             struct sfc_mae *mae,
3350                             const struct rte_flow_action_vxlan_encap *conf,
3351                             efx_mae_actions_t *spec,
3352                             struct rte_flow_error *error)
3353 {
3354         struct sfc_mae_bounce_eh *bounce_eh = &mae->bounce_eh;
3355         struct rte_flow_item *pattern = conf->definition;
3356         uint8_t *buf = bounce_eh->buf;
3357
3358         /* This array will keep track of non-VOID pattern items. */
3359         struct sfc_mae_parsed_item parsed_items[1 /* Ethernet */ +
3360                                                 2 /* VLAN tags */ +
3361                                                 1 /* IPv4 or IPv6 */ +
3362                                                 1 /* UDP */ +
3363                                                 1 /* VXLAN */];
3364         unsigned int nb_parsed_items = 0;
3365
3366         size_t eth_ethertype_ofst = offsetof(struct rte_ether_hdr, ether_type);
3367         uint8_t dummy_buf[RTE_MAX(sizeof(struct rte_ipv4_hdr),
3368                                   sizeof(struct rte_ipv6_hdr))];
3369         struct rte_ipv4_hdr *ipv4 = (void *)dummy_buf;
3370         struct rte_ipv6_hdr *ipv6 = (void *)dummy_buf;
3371         struct rte_vxlan_hdr *vxlan = NULL;
3372         struct rte_udp_hdr *udp = NULL;
3373         unsigned int nb_vlan_tags = 0;
3374         size_t next_proto_ofst = 0;
3375         size_t ethertype_ofst = 0;
3376         uint64_t exp_items;
3377         int rc;
3378
3379         if (pattern == NULL) {
3380                 return rte_flow_error_set(error, EINVAL,
3381                                 RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL,
3382                                 "The encap. header definition is NULL");
3383         }
3384
3385         bounce_eh->type = EFX_TUNNEL_PROTOCOL_VXLAN;
3386         bounce_eh->size = 0;
3387
3388         /*
3389          * Process pattern items and remember non-VOID ones.
3390          * Defer applying masks until after the complete header
3391          * has been built from the pattern items.
3392          */
3393         exp_items = RTE_BIT64(RTE_FLOW_ITEM_TYPE_ETH);
3394
3395         for (; pattern->type != RTE_FLOW_ITEM_TYPE_END; ++pattern) {
3396                 struct sfc_mae_parsed_item *parsed_item;
3397                 const uint64_t exp_items_extra_vlan[] = {
3398                         RTE_BIT64(RTE_FLOW_ITEM_TYPE_VLAN), 0
3399                 };
3400                 size_t proto_header_size;
3401                 rte_be16_t *ethertypep;
3402                 uint8_t *next_protop;
3403                 uint8_t *buf_cur;
3404
3405                 if (pattern->spec == NULL) {
3406                         return rte_flow_error_set(error, EINVAL,
3407                                         RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL,
3408                                         "NULL item spec in the encap. header");
3409                 }
3410
3411                 if (pattern->mask == NULL) {
3412                         return rte_flow_error_set(error, EINVAL,
3413                                         RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL,
3414                                         "NULL item mask in the encap. header");
3415                 }
3416
3417                 if (pattern->last != NULL) {
3418                         /* This is not a match pattern, so disallow range. */
3419                         return rte_flow_error_set(error, EINVAL,
3420                                         RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL,
3421                                         "Range item in the encap. header");
3422                 }
3423
3424                 if (pattern->type == RTE_FLOW_ITEM_TYPE_VOID) {
3425                         /* Handle VOID separately, for clarity. */
3426                         continue;
3427                 }
3428
3429                 if ((exp_items & RTE_BIT64(pattern->type)) == 0) {
3430                         return rte_flow_error_set(error, ENOTSUP,
3431                                         RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL,
3432                                         "Unexpected item in the encap. header");
3433                 }
3434
3435                 parsed_item = &parsed_items[nb_parsed_items];
3436                 buf_cur = buf + bounce_eh->size;
3437
3438                 switch (pattern->type) {
3439                 case RTE_FLOW_ITEM_TYPE_ETH:
3440                         SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ITEM_TYPE_ETH,
3441                                                exp_items);
3442                         RTE_BUILD_BUG_ON(offsetof(struct rte_flow_item_eth,
3443                                                   hdr) != 0);
3444
3445                         proto_header_size = sizeof(struct rte_ether_hdr);
3446
3447                         ethertype_ofst = eth_ethertype_ofst;
3448
3449                         exp_items = RTE_BIT64(RTE_FLOW_ITEM_TYPE_VLAN) |
3450                                     RTE_BIT64(RTE_FLOW_ITEM_TYPE_IPV4) |
3451                                     RTE_BIT64(RTE_FLOW_ITEM_TYPE_IPV6);
3452                         break;
3453                 case RTE_FLOW_ITEM_TYPE_VLAN:
3454                         SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ITEM_TYPE_VLAN,
3455                                                exp_items);
3456                         RTE_BUILD_BUG_ON(offsetof(struct rte_flow_item_vlan,
3457                                                   hdr) != 0);
3458
3459                         proto_header_size = sizeof(struct rte_vlan_hdr);
3460
3461                         ethertypep = RTE_PTR_ADD(buf, eth_ethertype_ofst);
3462                         *ethertypep = RTE_BE16(RTE_ETHER_TYPE_QINQ);
3463
3464                         ethertypep = RTE_PTR_ADD(buf, ethertype_ofst);
3465                         *ethertypep = RTE_BE16(RTE_ETHER_TYPE_VLAN);
3466
3467                         ethertype_ofst =
3468                             bounce_eh->size +
3469                             offsetof(struct rte_vlan_hdr, eth_proto);
3470
3471                         exp_items = RTE_BIT64(RTE_FLOW_ITEM_TYPE_IPV4) |
3472                                     RTE_BIT64(RTE_FLOW_ITEM_TYPE_IPV6);
3473                         exp_items |= exp_items_extra_vlan[nb_vlan_tags];
3474
3475                         ++nb_vlan_tags;
3476                         break;
3477                 case RTE_FLOW_ITEM_TYPE_IPV4:
3478                         SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ITEM_TYPE_IPV4,
3479                                                exp_items);
3480                         RTE_BUILD_BUG_ON(offsetof(struct rte_flow_item_ipv4,
3481                                                   hdr) != 0);
3482
3483                         proto_header_size = sizeof(struct rte_ipv4_hdr);
3484
3485                         ethertypep = RTE_PTR_ADD(buf, ethertype_ofst);
3486                         *ethertypep = RTE_BE16(RTE_ETHER_TYPE_IPV4);
3487
3488                         next_proto_ofst =
3489                             bounce_eh->size +
3490                             offsetof(struct rte_ipv4_hdr, next_proto_id);
3491
3492                         ipv4 = (struct rte_ipv4_hdr *)buf_cur;
3493
3494                         exp_items = RTE_BIT64(RTE_FLOW_ITEM_TYPE_UDP);
3495                         break;
3496                 case RTE_FLOW_ITEM_TYPE_IPV6:
3497                         SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ITEM_TYPE_IPV6,
3498                                                exp_items);
3499                         RTE_BUILD_BUG_ON(offsetof(struct rte_flow_item_ipv6,
3500                                                   hdr) != 0);
3501
3502                         proto_header_size = sizeof(struct rte_ipv6_hdr);
3503
3504                         ethertypep = RTE_PTR_ADD(buf, ethertype_ofst);
3505                         *ethertypep = RTE_BE16(RTE_ETHER_TYPE_IPV6);
3506
3507                         next_proto_ofst = bounce_eh->size +
3508                                           offsetof(struct rte_ipv6_hdr, proto);
3509
3510                         ipv6 = (struct rte_ipv6_hdr *)buf_cur;
3511
3512                         exp_items = RTE_BIT64(RTE_FLOW_ITEM_TYPE_UDP);
3513                         break;
3514                 case RTE_FLOW_ITEM_TYPE_UDP:
3515                         SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ITEM_TYPE_UDP,
3516                                                exp_items);
3517                         RTE_BUILD_BUG_ON(offsetof(struct rte_flow_item_udp,
3518                                                   hdr) != 0);
3519
3520                         proto_header_size = sizeof(struct rte_udp_hdr);
3521
3522                         next_protop = RTE_PTR_ADD(buf, next_proto_ofst);
3523                         *next_protop = IPPROTO_UDP;
3524
3525                         udp = (struct rte_udp_hdr *)buf_cur;
3526
3527                         exp_items = RTE_BIT64(RTE_FLOW_ITEM_TYPE_VXLAN);
3528                         break;
3529                 case RTE_FLOW_ITEM_TYPE_VXLAN:
3530                         SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ITEM_TYPE_VXLAN,
3531                                                exp_items);
3532                         RTE_BUILD_BUG_ON(offsetof(struct rte_flow_item_vxlan,
3533                                                   hdr) != 0);
3534
3535                         proto_header_size = sizeof(struct rte_vxlan_hdr);
3536
3537                         vxlan = (struct rte_vxlan_hdr *)buf_cur;
3538
3539                         udp->dst_port = RTE_BE16(RTE_VXLAN_DEFAULT_PORT);
3540                         udp->dgram_len = RTE_BE16(sizeof(*udp) +
3541                                                   sizeof(*vxlan));
3542                         udp->dgram_cksum = 0;
3543
3544                         exp_items = 0;
3545                         break;
3546                 default:
3547                         return rte_flow_error_set(error, ENOTSUP,
3548                                         RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL,
3549                                         "Unknown item in the encap. header");
3550                 }
3551
3552                 if (bounce_eh->size + proto_header_size > bounce_eh->buf_size) {
3553                         return rte_flow_error_set(error, E2BIG,
3554                                         RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL,
3555                                         "The encap. header is too big");
3556                 }
3557
3558                 if ((proto_header_size & 1) != 0) {
3559                         return rte_flow_error_set(error, EINVAL,
3560                                         RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL,
3561                                         "Odd layer size in the encap. header");
3562                 }
3563
3564                 rte_memcpy(buf_cur, pattern->spec, proto_header_size);
3565                 bounce_eh->size += proto_header_size;
3566
3567                 parsed_item->item = pattern;
3568                 parsed_item->proto_header_size = proto_header_size;
3569                 ++nb_parsed_items;
3570         }
3571
3572         if (exp_items != 0) {
3573                 /* Parsing item VXLAN would have reset exp_items to 0. */
3574                 return rte_flow_error_set(error, ENOTSUP,
3575                                         RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL,
3576                                         "No item VXLAN in the encap. header");
3577         }
3578
3579         /* One of the pointers (ipv4, ipv6) refers to a dummy area. */
3580         ipv4->version_ihl = RTE_IPV4_VHL_DEF;
3581         ipv4->time_to_live = SFC_IPV4_TTL_DEF;
3582         ipv4->total_length = RTE_BE16(sizeof(*ipv4) + sizeof(*udp) +
3583                                       sizeof(*vxlan));
3584         /* The HW cannot compute this checksum. */
3585         ipv4->hdr_checksum = 0;
3586         ipv4->hdr_checksum = rte_ipv4_cksum(ipv4);
3587
3588         ipv6->vtc_flow = RTE_BE32(SFC_IPV6_VTC_FLOW_DEF);
3589         ipv6->hop_limits = SFC_IPV6_HOP_LIMITS_DEF;
3590         ipv6->payload_len = udp->dgram_len;
3591
3592         vxlan->vx_flags = RTE_BE32(SFC_VXLAN_FLAGS_DEF);
3593
3594         /* Take care of the masks. */
3595         sfc_mae_header_force_item_masks(buf, parsed_items, nb_parsed_items);
3596
3597         rc = efx_mae_action_set_populate_encap(spec);
3598         if (rc != 0) {
3599                 rc = rte_flow_error_set(error, rc, RTE_FLOW_ERROR_TYPE_ACTION,
3600                                 NULL, "failed to request action ENCAP");
3601         }
3602
3603         return rc;
3604 }
3605
3606 static int
3607 sfc_mae_rule_parse_action_mark(struct sfc_adapter *sa,
3608                                const struct rte_flow_action_mark *conf,
3609                                const struct sfc_flow_spec_mae *spec_mae,
3610                                efx_mae_actions_t *spec)
3611 {
3612         int rc;
3613
3614         if (spec_mae->ft_rule_type == SFC_FT_RULE_JUMP) {
3615                 /* Workaround. See sfc_flow_parse_rte_to_mae() */
3616         } else if (conf->id > SFC_FT_USER_MARK_MASK) {
3617                 sfc_err(sa, "the mark value is too large");
3618                 return EINVAL;
3619         }
3620
3621         rc = efx_mae_action_set_populate_mark(spec, conf->id);
3622         if (rc != 0)
3623                 sfc_err(sa, "failed to request action MARK: %s", strerror(rc));
3624
3625         return rc;
3626 }
3627
3628 static int
3629 sfc_mae_rule_parse_action_count(struct sfc_adapter *sa,
3630                                 const struct rte_flow_action_count *conf
3631                                         __rte_unused,
3632                                 efx_mae_actions_t *spec)
3633 {
3634         int rc;
3635
3636         if ((sa->counter_rxq.state & SFC_COUNTER_RXQ_INITIALIZED) == 0) {
3637                 sfc_err(sa,
3638                         "counter queue is not configured for COUNT action");
3639                 rc = EINVAL;
3640                 goto fail_counter_queue_uninit;
3641         }
3642
3643         if (sfc_get_service_lcore(SOCKET_ID_ANY) == RTE_MAX_LCORE) {
3644                 rc = EINVAL;
3645                 goto fail_no_service_core;
3646         }
3647
3648         rc = efx_mae_action_set_populate_count(spec);
3649         if (rc != 0) {
3650                 sfc_err(sa,
3651                         "failed to populate counters in MAE action set: %s",
3652                         rte_strerror(rc));
3653                 goto fail_populate_count;
3654         }
3655
3656         return 0;
3657
3658 fail_populate_count:
3659 fail_no_service_core:
3660 fail_counter_queue_uninit:
3661
3662         return rc;
3663 }
3664
3665 static int
3666 sfc_mae_rule_parse_action_phy_port(struct sfc_adapter *sa,
3667                                    const struct rte_flow_action_phy_port *conf,
3668                                    efx_mae_actions_t *spec)
3669 {
3670         efx_mport_sel_t mport;
3671         uint32_t phy_port;
3672         int rc;
3673
3674         if (conf->original != 0)
3675                 phy_port = efx_nic_cfg_get(sa->nic)->enc_assigned_port;
3676         else
3677                 phy_port = conf->index;
3678
3679         rc = efx_mae_mport_by_phy_port(phy_port, &mport);
3680         if (rc != 0) {
3681                 sfc_err(sa, "failed to convert phys. port ID %u to m-port selector: %s",
3682                         phy_port, strerror(rc));
3683                 return rc;
3684         }
3685
3686         rc = efx_mae_action_set_populate_deliver(spec, &mport);
3687         if (rc != 0) {
3688                 sfc_err(sa, "failed to request action DELIVER with m-port selector 0x%08x: %s",
3689                         mport.sel, strerror(rc));
3690         }
3691
3692         return rc;
3693 }
3694
3695 static int
3696 sfc_mae_rule_parse_action_pf_vf(struct sfc_adapter *sa,
3697                                 const struct rte_flow_action_vf *vf_conf,
3698                                 efx_mae_actions_t *spec)
3699 {
3700         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
3701         efx_mport_sel_t mport;
3702         uint32_t vf;
3703         int rc;
3704
3705         if (vf_conf == NULL)
3706                 vf = EFX_PCI_VF_INVALID;
3707         else if (vf_conf->original != 0)
3708                 vf = encp->enc_vf;
3709         else
3710                 vf = vf_conf->id;
3711
3712         rc = efx_mae_mport_by_pcie_function(encp->enc_pf, vf, &mport);
3713         if (rc != 0) {
3714                 sfc_err(sa, "failed to convert PF %u VF %d to m-port: %s",
3715                         encp->enc_pf, (vf != EFX_PCI_VF_INVALID) ? (int)vf : -1,
3716                         strerror(rc));
3717                 return rc;
3718         }
3719
3720         rc = efx_mae_action_set_populate_deliver(spec, &mport);
3721         if (rc != 0) {
3722                 sfc_err(sa, "failed to request action DELIVER with m-port selector 0x%08x: %s",
3723                         mport.sel, strerror(rc));
3724         }
3725
3726         return rc;
3727 }
3728
3729 static int
3730 sfc_mae_rule_parse_action_port_id(struct sfc_adapter *sa,
3731                                   const struct rte_flow_action_port_id *conf,
3732                                   efx_mae_actions_t *spec)
3733 {
3734         struct sfc_adapter_shared * const sas = sfc_sa2shared(sa);
3735         struct sfc_mae *mae = &sa->mae;
3736         efx_mport_sel_t mport;
3737         uint16_t port_id;
3738         int rc;
3739
3740         if (conf->id > UINT16_MAX)
3741                 return EOVERFLOW;
3742
3743         port_id = (conf->original != 0) ? sas->port_id : conf->id;
3744
3745         rc = sfc_mae_switch_get_ethdev_mport(mae->switch_domain_id,
3746                                              port_id, &mport);
3747         if (rc != 0) {
3748                 sfc_err(sa, "failed to get m-port for the given ethdev (port_id=%u): %s",
3749                         port_id, strerror(rc));
3750                 return rc;
3751         }
3752
3753         rc = efx_mae_action_set_populate_deliver(spec, &mport);
3754         if (rc != 0) {
3755                 sfc_err(sa, "failed to request action DELIVER with m-port selector 0x%08x: %s",
3756                         mport.sel, strerror(rc));
3757         }
3758
3759         return rc;
3760 }
3761
3762 static int
3763 sfc_mae_rule_parse_action_port_representor(struct sfc_adapter *sa,
3764                 const struct rte_flow_action_ethdev *conf,
3765                 efx_mae_actions_t *spec)
3766 {
3767         struct sfc_mae *mae = &sa->mae;
3768         efx_mport_sel_t mport;
3769         int rc;
3770
3771         rc = sfc_mae_switch_get_ethdev_mport(mae->switch_domain_id,
3772                                              conf->port_id, &mport);
3773         if (rc != 0) {
3774                 sfc_err(sa, "failed to get m-port for the given ethdev (port_id=%u): %s",
3775                         conf->port_id, strerror(rc));
3776                 return rc;
3777         }
3778
3779         rc = efx_mae_action_set_populate_deliver(spec, &mport);
3780         if (rc != 0) {
3781                 sfc_err(sa, "failed to request action DELIVER with m-port selector 0x%08x: %s",
3782                         mport.sel, strerror(rc));
3783         }
3784
3785         return rc;
3786 }
3787
3788 static int
3789 sfc_mae_rule_parse_action_represented_port(struct sfc_adapter *sa,
3790                 const struct rte_flow_action_ethdev *conf,
3791                 efx_mae_actions_t *spec)
3792 {
3793         struct sfc_mae *mae = &sa->mae;
3794         efx_mport_sel_t mport;
3795         int rc;
3796
3797         rc = sfc_mae_switch_get_entity_mport(mae->switch_domain_id,
3798                                              conf->port_id, &mport);
3799         if (rc != 0) {
3800                 sfc_err(sa, "failed to get m-port for the given ethdev (port_id=%u): %s",
3801                         conf->port_id, strerror(rc));
3802                 return rc;
3803         }
3804
3805         rc = efx_mae_action_set_populate_deliver(spec, &mport);
3806         if (rc != 0) {
3807                 sfc_err(sa, "failed to request action DELIVER with m-port selector 0x%08x: %s",
3808                         mport.sel, strerror(rc));
3809         }
3810
3811         return rc;
3812 }
3813
3814 static const char * const action_names[] = {
3815         [RTE_FLOW_ACTION_TYPE_VXLAN_DECAP] = "VXLAN_DECAP",
3816         [RTE_FLOW_ACTION_TYPE_OF_POP_VLAN] = "OF_POP_VLAN",
3817         [RTE_FLOW_ACTION_TYPE_SET_MAC_DST] = "SET_MAC_DST",
3818         [RTE_FLOW_ACTION_TYPE_SET_MAC_SRC] = "SET_MAC_SRC",
3819         [RTE_FLOW_ACTION_TYPE_OF_DEC_NW_TTL] = "OF_DEC_NW_TTL",
3820         [RTE_FLOW_ACTION_TYPE_DEC_TTL] = "DEC_TTL",
3821         [RTE_FLOW_ACTION_TYPE_OF_PUSH_VLAN] = "OF_PUSH_VLAN",
3822         [RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_VID] = "OF_SET_VLAN_VID",
3823         [RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_PCP] = "OF_SET_VLAN_PCP",
3824         [RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP] = "VXLAN_ENCAP",
3825         [RTE_FLOW_ACTION_TYPE_COUNT] = "COUNT",
3826         [RTE_FLOW_ACTION_TYPE_FLAG] = "FLAG",
3827         [RTE_FLOW_ACTION_TYPE_MARK] = "MARK",
3828         [RTE_FLOW_ACTION_TYPE_PHY_PORT] = "PHY_PORT",
3829         [RTE_FLOW_ACTION_TYPE_PF] = "PF",
3830         [RTE_FLOW_ACTION_TYPE_VF] = "VF",
3831         [RTE_FLOW_ACTION_TYPE_PORT_ID] = "PORT_ID",
3832         [RTE_FLOW_ACTION_TYPE_PORT_REPRESENTOR] = "PORT_REPRESENTOR",
3833         [RTE_FLOW_ACTION_TYPE_REPRESENTED_PORT] = "REPRESENTED_PORT",
3834         [RTE_FLOW_ACTION_TYPE_DROP] = "DROP",
3835         [RTE_FLOW_ACTION_TYPE_JUMP] = "JUMP",
3836 };
3837
3838 static int
3839 sfc_mae_rule_parse_action(struct sfc_adapter *sa,
3840                           const struct rte_flow_action *action,
3841                           const struct sfc_flow_spec_mae *spec_mae,
3842                           struct sfc_mae_actions_bundle *bundle,
3843                           struct sfc_mae_aset_ctx *ctx,
3844                           struct rte_flow_error *error)
3845 {
3846         const struct sfc_mae_outer_rule *outer_rule = spec_mae->outer_rule;
3847         const uint64_t rx_metadata = sa->negotiated_rx_metadata;
3848         efx_mae_actions_t *spec = ctx->spec;
3849         bool custom_error = B_FALSE;
3850         int rc = 0;
3851
3852         switch (action->type) {
3853         case RTE_FLOW_ACTION_TYPE_VXLAN_DECAP:
3854                 SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ACTION_TYPE_VXLAN_DECAP,
3855                                        bundle->actions_mask);
3856                 if (outer_rule == NULL ||
3857                     outer_rule->encap_type != EFX_TUNNEL_PROTOCOL_VXLAN)
3858                         rc = EINVAL;
3859                 else
3860                         rc = efx_mae_action_set_populate_decap(spec);
3861                 break;
3862         case RTE_FLOW_ACTION_TYPE_OF_POP_VLAN:
3863                 SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ACTION_TYPE_OF_POP_VLAN,
3864                                        bundle->actions_mask);
3865                 rc = efx_mae_action_set_populate_vlan_pop(spec);
3866                 break;
3867         case RTE_FLOW_ACTION_TYPE_SET_MAC_DST:
3868                 SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ACTION_TYPE_SET_MAC_DST,
3869                                        bundle->actions_mask);
3870                 rc = sfc_mae_rule_parse_action_set_mac(sa, SFC_MAE_MAC_ADDR_DST,
3871                                                        action->conf, ctx,
3872                                                        error);
3873                 custom_error = B_TRUE;
3874                 break;
3875         case RTE_FLOW_ACTION_TYPE_SET_MAC_SRC:
3876                 SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ACTION_TYPE_SET_MAC_SRC,
3877                                        bundle->actions_mask);
3878                 rc = sfc_mae_rule_parse_action_set_mac(sa, SFC_MAE_MAC_ADDR_SRC,
3879                                                        action->conf, ctx,
3880                                                        error);
3881                 custom_error = B_TRUE;
3882                 break;
3883         case RTE_FLOW_ACTION_TYPE_OF_DEC_NW_TTL:
3884         case RTE_FLOW_ACTION_TYPE_DEC_TTL:
3885                 SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ACTION_TYPE_OF_DEC_NW_TTL,
3886                                        bundle->actions_mask);
3887                 SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ACTION_TYPE_DEC_TTL,
3888                                        bundle->actions_mask);
3889                 rc = efx_mae_action_set_populate_decr_ip_ttl(spec);
3890                 break;
3891         case RTE_FLOW_ACTION_TYPE_OF_PUSH_VLAN:
3892                 SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ACTION_TYPE_OF_PUSH_VLAN,
3893                                        bundle->actions_mask);
3894                 sfc_mae_rule_parse_action_of_push_vlan(action->conf, bundle);
3895                 break;
3896         case RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_VID:
3897                 SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_VID,
3898                                        bundle->actions_mask);
3899                 sfc_mae_rule_parse_action_of_set_vlan_vid(action->conf, bundle);
3900                 break;
3901         case RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_PCP:
3902                 SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_PCP,
3903                                        bundle->actions_mask);
3904                 sfc_mae_rule_parse_action_of_set_vlan_pcp(action->conf, bundle);
3905                 break;
3906         case RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP:
3907                 SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP,
3908                                        bundle->actions_mask);
3909                 rc = sfc_mae_rule_parse_action_vxlan_encap(&sa->mae,
3910                                                            action->conf,
3911                                                            spec, error);
3912                 custom_error = B_TRUE;
3913                 break;
3914         case RTE_FLOW_ACTION_TYPE_COUNT:
3915                 SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ACTION_TYPE_COUNT,
3916                                        bundle->actions_mask);
3917                 rc = sfc_mae_rule_parse_action_count(sa, action->conf, spec);
3918                 break;
3919         case RTE_FLOW_ACTION_TYPE_FLAG:
3920                 SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ACTION_TYPE_FLAG,
3921                                        bundle->actions_mask);
3922                 if ((rx_metadata & RTE_ETH_RX_METADATA_USER_FLAG) != 0) {
3923                         rc = efx_mae_action_set_populate_flag(spec);
3924                 } else {
3925                         rc = rte_flow_error_set(error, ENOTSUP,
3926                                                 RTE_FLOW_ERROR_TYPE_ACTION,
3927                                                 action,
3928                                                 "flag delivery has not been negotiated");
3929                         custom_error = B_TRUE;
3930                 }
3931                 break;
3932         case RTE_FLOW_ACTION_TYPE_MARK:
3933                 SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ACTION_TYPE_MARK,
3934                                        bundle->actions_mask);
3935                 if ((rx_metadata & RTE_ETH_RX_METADATA_USER_MARK) != 0 ||
3936                     spec_mae->ft_rule_type == SFC_FT_RULE_JUMP) {
3937                         rc = sfc_mae_rule_parse_action_mark(sa, action->conf,
3938                                                             spec_mae, spec);
3939                 } else {
3940                         rc = rte_flow_error_set(error, ENOTSUP,
3941                                                 RTE_FLOW_ERROR_TYPE_ACTION,
3942                                                 action,
3943                                                 "mark delivery has not been negotiated");
3944                         custom_error = B_TRUE;
3945                 }
3946                 break;
3947         case RTE_FLOW_ACTION_TYPE_PHY_PORT:
3948                 SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ACTION_TYPE_PHY_PORT,
3949                                        bundle->actions_mask);
3950                 rc = sfc_mae_rule_parse_action_phy_port(sa, action->conf, spec);
3951                 break;
3952         case RTE_FLOW_ACTION_TYPE_PF:
3953                 SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ACTION_TYPE_PF,
3954                                        bundle->actions_mask);
3955                 rc = sfc_mae_rule_parse_action_pf_vf(sa, NULL, spec);
3956                 break;
3957         case RTE_FLOW_ACTION_TYPE_VF:
3958                 SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ACTION_TYPE_VF,
3959                                        bundle->actions_mask);
3960                 rc = sfc_mae_rule_parse_action_pf_vf(sa, action->conf, spec);
3961                 break;
3962         case RTE_FLOW_ACTION_TYPE_PORT_ID:
3963                 SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ACTION_TYPE_PORT_ID,
3964                                        bundle->actions_mask);
3965                 rc = sfc_mae_rule_parse_action_port_id(sa, action->conf, spec);
3966                 break;
3967         case RTE_FLOW_ACTION_TYPE_PORT_REPRESENTOR:
3968                 SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ACTION_TYPE_PORT_REPRESENTOR,
3969                                        bundle->actions_mask);
3970                 rc = sfc_mae_rule_parse_action_port_representor(sa,
3971                                 action->conf, spec);
3972                 break;
3973         case RTE_FLOW_ACTION_TYPE_REPRESENTED_PORT:
3974                 SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ACTION_TYPE_REPRESENTED_PORT,
3975                                        bundle->actions_mask);
3976                 rc = sfc_mae_rule_parse_action_represented_port(sa,
3977                                 action->conf, spec);
3978                 break;
3979         case RTE_FLOW_ACTION_TYPE_DROP:
3980                 SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ACTION_TYPE_DROP,
3981                                        bundle->actions_mask);
3982                 rc = efx_mae_action_set_populate_drop(spec);
3983                 break;
3984         case RTE_FLOW_ACTION_TYPE_JUMP:
3985                 if (spec_mae->ft_rule_type == SFC_FT_RULE_JUMP) {
3986                         /* Workaround. See sfc_flow_parse_rte_to_mae() */
3987                         break;
3988                 }
3989                 /* FALLTHROUGH */
3990         default:
3991                 return rte_flow_error_set(error, ENOTSUP,
3992                                 RTE_FLOW_ERROR_TYPE_ACTION, NULL,
3993                                 "Unsupported action");
3994         }
3995
3996         if (rc == 0) {
3997                 bundle->actions_mask |= (1ULL << action->type);
3998         } else if (!custom_error) {
3999                 if (action->type < RTE_DIM(action_names)) {
4000                         const char *action_name = action_names[action->type];
4001
4002                         if (action_name != NULL) {
4003                                 sfc_err(sa, "action %s was rejected: %s",
4004                                         action_name, strerror(rc));
4005                         }
4006                 }
4007                 rc = rte_flow_error_set(error, rc, RTE_FLOW_ERROR_TYPE_ACTION,
4008                                 NULL, "Failed to request the action");
4009         }
4010
4011         return rc;
4012 }
4013
4014 static void
4015 sfc_mae_bounce_eh_invalidate(struct sfc_mae_bounce_eh *bounce_eh)
4016 {
4017         bounce_eh->type = EFX_TUNNEL_PROTOCOL_NONE;
4018 }
4019
4020 static int
4021 sfc_mae_process_encap_header(struct sfc_adapter *sa,
4022                              const struct sfc_mae_bounce_eh *bounce_eh,
4023                              struct sfc_mae_encap_header **encap_headerp)
4024 {
4025         if (bounce_eh->type == EFX_TUNNEL_PROTOCOL_NONE) {
4026                 encap_headerp = NULL;
4027                 return 0;
4028         }
4029
4030         *encap_headerp = sfc_mae_encap_header_attach(sa, bounce_eh);
4031         if (*encap_headerp != NULL)
4032                 return 0;
4033
4034         return sfc_mae_encap_header_add(sa, bounce_eh, encap_headerp);
4035 }
4036
4037 int
4038 sfc_mae_rule_parse_actions(struct sfc_adapter *sa,
4039                            const struct rte_flow_action actions[],
4040                            struct sfc_flow_spec_mae *spec_mae,
4041                            struct rte_flow_error *error)
4042 {
4043         struct sfc_mae_actions_bundle bundle = {0};
4044         const struct rte_flow_action *action;
4045         struct sfc_mae_aset_ctx ctx = {0};
4046         struct sfc_mae *mae = &sa->mae;
4047         int rc;
4048
4049         rte_errno = 0;
4050
4051         if (actions == NULL) {
4052                 return rte_flow_error_set(error, EINVAL,
4053                                 RTE_FLOW_ERROR_TYPE_ACTION_NUM, NULL,
4054                                 "NULL actions");
4055         }
4056
4057         rc = efx_mae_action_set_spec_init(sa->nic, &ctx.spec);
4058         if (rc != 0)
4059                 goto fail_action_set_spec_init;
4060
4061         for (action = actions;
4062              action->type != RTE_FLOW_ACTION_TYPE_END; ++action) {
4063                 if (action->type == RTE_FLOW_ACTION_TYPE_COUNT)
4064                         ++(ctx.n_counters);
4065         }
4066
4067         if (spec_mae->ft_rule_type == SFC_FT_RULE_GROUP) {
4068                 /* JUMP rules don't decapsulate packets. GROUP rules do. */
4069                 rc = efx_mae_action_set_populate_decap(ctx.spec);
4070                 if (rc != 0)
4071                         goto fail_enforce_ft_decap;
4072
4073                 if (ctx.n_counters == 0 &&
4074                     sfc_mae_counter_stream_enabled(sa)) {
4075                         /*
4076                          * The user opted not to use action COUNT in this rule,
4077                          * but the counter should be enabled implicitly because
4078                          * packets hitting this rule contribute to the tunnel's
4079                          * total number of hits. See sfc_mae_counter_get().
4080                          */
4081                         rc = efx_mae_action_set_populate_count(ctx.spec);
4082                         if (rc != 0)
4083                                 goto fail_enforce_ft_count;
4084
4085                         ctx.n_counters = 1;
4086                 }
4087         }
4088
4089         /* Cleanup after previous encap. header bounce buffer usage. */
4090         sfc_mae_bounce_eh_invalidate(&mae->bounce_eh);
4091
4092         for (action = actions;
4093              action->type != RTE_FLOW_ACTION_TYPE_END; ++action) {
4094                 rc = sfc_mae_actions_bundle_sync(action, &bundle,
4095                                                  ctx.spec, error);
4096                 if (rc != 0)
4097                         goto fail_rule_parse_action;
4098
4099                 rc = sfc_mae_rule_parse_action(sa, action, spec_mae,
4100                                                &bundle, &ctx, error);
4101                 if (rc != 0)
4102                         goto fail_rule_parse_action;
4103         }
4104
4105         rc = sfc_mae_actions_bundle_sync(action, &bundle, ctx.spec, error);
4106         if (rc != 0)
4107                 goto fail_rule_parse_action;
4108
4109         rc = sfc_mae_process_encap_header(sa, &mae->bounce_eh,
4110                                           &ctx.encap_header);
4111         if (rc != 0)
4112                 goto fail_process_encap_header;
4113
4114         if (ctx.n_counters > 1) {
4115                 rc = ENOTSUP;
4116                 sfc_err(sa, "too many count actions requested: %u",
4117                         ctx.n_counters);
4118                 goto fail_nb_count;
4119         }
4120
4121         switch (spec_mae->ft_rule_type) {
4122         case SFC_FT_RULE_NONE:
4123                 break;
4124         case SFC_FT_RULE_JUMP:
4125                 /* Workaround. See sfc_flow_parse_rte_to_mae() */
4126                 rc = sfc_mae_rule_parse_action_pf_vf(sa, NULL, ctx.spec);
4127                 if (rc != 0)
4128                         goto fail_workaround_jump_delivery;
4129
4130                 ctx.counter_ft = spec_mae->ft;
4131                 break;
4132         case SFC_FT_RULE_GROUP:
4133                 /*
4134                  * Packets that go to the rule's AR have FT mark set (from the
4135                  * JUMP rule OR's RECIRC_ID). Remove this mark in matching
4136                  * packets. The user may have provided their own action
4137                  * MARK above, so don't check the return value here.
4138                  */
4139                 (void)efx_mae_action_set_populate_mark(ctx.spec, 0);
4140
4141                 ctx.ft_group_hit_counter = &spec_mae->ft->group_hit_counter;
4142                 break;
4143         default:
4144                 SFC_ASSERT(B_FALSE);
4145         }
4146
4147         spec_mae->action_set = sfc_mae_action_set_attach(sa, &ctx);
4148         if (spec_mae->action_set != NULL) {
4149                 sfc_mae_encap_header_del(sa, ctx.encap_header);
4150                 efx_mae_action_set_spec_fini(sa->nic, ctx.spec);
4151                 return 0;
4152         }
4153
4154         rc = sfc_mae_action_set_add(sa, actions, &ctx, &spec_mae->action_set);
4155         if (rc != 0)
4156                 goto fail_action_set_add;
4157
4158         return 0;
4159
4160 fail_action_set_add:
4161 fail_workaround_jump_delivery:
4162 fail_nb_count:
4163         sfc_mae_encap_header_del(sa, ctx.encap_header);
4164
4165 fail_process_encap_header:
4166 fail_rule_parse_action:
4167         sfc_mae_mac_addr_del(sa, ctx.src_mac);
4168         sfc_mae_mac_addr_del(sa, ctx.dst_mac);
4169         efx_mae_action_set_spec_fini(sa->nic, ctx.spec);
4170
4171 fail_enforce_ft_count:
4172 fail_enforce_ft_decap:
4173 fail_action_set_spec_init:
4174         if (rc > 0 && rte_errno == 0) {
4175                 rc = rte_flow_error_set(error, rc,
4176                         RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
4177                         NULL, "Failed to process the action");
4178         }
4179         return rc;
4180 }
4181
4182 static bool
4183 sfc_mae_rules_class_cmp(struct sfc_adapter *sa,
4184                         const efx_mae_match_spec_t *left,
4185                         const efx_mae_match_spec_t *right)
4186 {
4187         bool have_same_class;
4188         int rc;
4189
4190         rc = efx_mae_match_specs_class_cmp(sa->nic, left, right,
4191                                            &have_same_class);
4192
4193         return (rc == 0) ? have_same_class : false;
4194 }
4195
4196 static int
4197 sfc_mae_outer_rule_class_verify(struct sfc_adapter *sa,
4198                                 struct sfc_mae_outer_rule *rule)
4199 {
4200         struct sfc_mae_fw_rsrc *fw_rsrc = &rule->fw_rsrc;
4201         struct sfc_mae_outer_rule *entry;
4202         struct sfc_mae *mae = &sa->mae;
4203
4204         if (fw_rsrc->rule_id.id != EFX_MAE_RSRC_ID_INVALID) {
4205                 /* An active rule is reused. It's class is wittingly valid. */
4206                 return 0;
4207         }
4208
4209         TAILQ_FOREACH_REVERSE(entry, &mae->outer_rules,
4210                               sfc_mae_outer_rules, entries) {
4211                 const efx_mae_match_spec_t *left = entry->match_spec;
4212                 const efx_mae_match_spec_t *right = rule->match_spec;
4213
4214                 if (entry == rule)
4215                         continue;
4216
4217                 if (sfc_mae_rules_class_cmp(sa, left, right))
4218                         return 0;
4219         }
4220
4221         sfc_info(sa, "for now, the HW doesn't support rule validation, and HW "
4222                  "support for outer frame pattern items is not guaranteed; "
4223                  "other than that, the items are valid from SW standpoint");
4224         return 0;
4225 }
4226
4227 static int
4228 sfc_mae_action_rule_class_verify(struct sfc_adapter *sa,
4229                                  struct sfc_flow_spec_mae *spec)
4230 {
4231         const struct rte_flow *entry;
4232
4233         if (spec->match_spec == NULL)
4234                 return 0;
4235
4236         TAILQ_FOREACH_REVERSE(entry, &sa->flow_list, sfc_flow_list, entries) {
4237                 const struct sfc_flow_spec *entry_spec = &entry->spec;
4238                 const struct sfc_flow_spec_mae *es_mae = &entry_spec->mae;
4239                 const efx_mae_match_spec_t *left = es_mae->match_spec;
4240                 const efx_mae_match_spec_t *right = spec->match_spec;
4241
4242                 switch (entry_spec->type) {
4243                 case SFC_FLOW_SPEC_FILTER:
4244                         /* Ignore VNIC-level flows */
4245                         break;
4246                 case SFC_FLOW_SPEC_MAE:
4247                         if (sfc_mae_rules_class_cmp(sa, left, right))
4248                                 return 0;
4249                         break;
4250                 default:
4251                         SFC_ASSERT(false);
4252                 }
4253         }
4254
4255         sfc_info(sa, "for now, the HW doesn't support rule validation, and HW "
4256                  "support for inner frame pattern items is not guaranteed; "
4257                  "other than that, the items are valid from SW standpoint");
4258         return 0;
4259 }
4260
4261 /**
4262  * Confirm that a given flow can be accepted by the FW.
4263  *
4264  * @param sa
4265  *   Software adapter context
4266  * @param flow
4267  *   Flow to be verified
4268  * @return
4269  *   Zero on success and non-zero in the case of error.
4270  *   A special value of EAGAIN indicates that the adapter is
4271  *   not in started state. This state is compulsory because
4272  *   it only makes sense to compare the rule class of the flow
4273  *   being validated with classes of the active rules.
4274  *   Such classes are wittingly supported by the FW.
4275  */
4276 int
4277 sfc_mae_flow_verify(struct sfc_adapter *sa,
4278                     struct rte_flow *flow)
4279 {
4280         struct sfc_flow_spec *spec = &flow->spec;
4281         struct sfc_flow_spec_mae *spec_mae = &spec->mae;
4282         struct sfc_mae_outer_rule *outer_rule = spec_mae->outer_rule;
4283         int rc;
4284
4285         SFC_ASSERT(sfc_adapter_is_locked(sa));
4286
4287         if (sa->state != SFC_ETHDEV_STARTED)
4288                 return EAGAIN;
4289
4290         if (outer_rule != NULL) {
4291                 rc = sfc_mae_outer_rule_class_verify(sa, outer_rule);
4292                 if (rc != 0)
4293                         return rc;
4294         }
4295
4296         return sfc_mae_action_rule_class_verify(sa, spec_mae);
4297 }
4298
4299 int
4300 sfc_mae_flow_insert(struct sfc_adapter *sa,
4301                     struct rte_flow *flow)
4302 {
4303         struct sfc_flow_spec *spec = &flow->spec;
4304         struct sfc_flow_spec_mae *spec_mae = &spec->mae;
4305         struct sfc_mae_outer_rule *outer_rule = spec_mae->outer_rule;
4306         struct sfc_mae_action_set *action_set = spec_mae->action_set;
4307         struct sfc_mae_fw_rsrc *fw_rsrc;
4308         int rc;
4309
4310         SFC_ASSERT(spec_mae->rule_id.id == EFX_MAE_RSRC_ID_INVALID);
4311
4312         if (outer_rule != NULL) {
4313                 rc = sfc_mae_outer_rule_enable(sa, outer_rule,
4314                                                spec_mae->match_spec);
4315                 if (rc != 0)
4316                         goto fail_outer_rule_enable;
4317         }
4318
4319         if (spec_mae->ft_rule_type == SFC_FT_RULE_JUMP) {
4320                 spec_mae->ft->reset_jump_hit_counter =
4321                         spec_mae->ft->group_hit_counter;
4322         }
4323
4324         if (action_set == NULL) {
4325                 sfc_dbg(sa, "enabled flow=%p (no AR)", flow);
4326                 return 0;
4327         }
4328
4329         rc = sfc_mae_action_set_enable(sa, action_set);
4330         if (rc != 0)
4331                 goto fail_action_set_enable;
4332
4333         if (action_set->n_counters > 0) {
4334                 rc = sfc_mae_counter_start(sa);
4335                 if (rc != 0) {
4336                         sfc_err(sa, "failed to start MAE counters support: %s",
4337                                 rte_strerror(rc));
4338                         goto fail_mae_counter_start;
4339                 }
4340         }
4341
4342         fw_rsrc = &action_set->fw_rsrc;
4343
4344         rc = efx_mae_action_rule_insert(sa->nic, spec_mae->match_spec,
4345                                         NULL, &fw_rsrc->aset_id,
4346                                         &spec_mae->rule_id);
4347         if (rc != 0)
4348                 goto fail_action_rule_insert;
4349
4350         sfc_dbg(sa, "enabled flow=%p: AR_ID=0x%08x",
4351                 flow, spec_mae->rule_id.id);
4352
4353         return 0;
4354
4355 fail_action_rule_insert:
4356 fail_mae_counter_start:
4357         sfc_mae_action_set_disable(sa, action_set);
4358
4359 fail_action_set_enable:
4360         if (outer_rule != NULL)
4361                 sfc_mae_outer_rule_disable(sa, outer_rule);
4362
4363 fail_outer_rule_enable:
4364         return rc;
4365 }
4366
4367 int
4368 sfc_mae_flow_remove(struct sfc_adapter *sa,
4369                     struct rte_flow *flow)
4370 {
4371         struct sfc_flow_spec *spec = &flow->spec;
4372         struct sfc_flow_spec_mae *spec_mae = &spec->mae;
4373         struct sfc_mae_action_set *action_set = spec_mae->action_set;
4374         struct sfc_mae_outer_rule *outer_rule = spec_mae->outer_rule;
4375         int rc;
4376
4377         if (action_set == NULL) {
4378                 sfc_dbg(sa, "disabled flow=%p (no AR)", flow);
4379                 goto skip_action_rule;
4380         }
4381
4382         SFC_ASSERT(spec_mae->rule_id.id != EFX_MAE_RSRC_ID_INVALID);
4383
4384         rc = efx_mae_action_rule_remove(sa->nic, &spec_mae->rule_id);
4385         if (rc != 0) {
4386                 sfc_err(sa, "failed to disable flow=%p with AR_ID=0x%08x: %s",
4387                         flow, spec_mae->rule_id.id, strerror(rc));
4388         }
4389         sfc_dbg(sa, "disabled flow=%p with AR_ID=0x%08x",
4390                 flow, spec_mae->rule_id.id);
4391         spec_mae->rule_id.id = EFX_MAE_RSRC_ID_INVALID;
4392
4393         sfc_mae_action_set_disable(sa, action_set);
4394
4395 skip_action_rule:
4396         if (outer_rule != NULL)
4397                 sfc_mae_outer_rule_disable(sa, outer_rule);
4398
4399         return 0;
4400 }
4401
4402 static int
4403 sfc_mae_query_counter(struct sfc_adapter *sa,
4404                       struct sfc_flow_spec_mae *spec,
4405                       const struct rte_flow_action *action,
4406                       struct rte_flow_query_count *data,
4407                       struct rte_flow_error *error)
4408 {
4409         struct sfc_mae_action_set *action_set = spec->action_set;
4410         const struct rte_flow_action_count *conf = action->conf;
4411         unsigned int i;
4412         int rc;
4413
4414         if (action_set == NULL || action_set->n_counters == 0) {
4415                 return rte_flow_error_set(error, EINVAL,
4416                         RTE_FLOW_ERROR_TYPE_ACTION, action,
4417                         "Queried flow rule does not have count actions");
4418         }
4419
4420         for (i = 0; i < action_set->n_counters; i++) {
4421                 /*
4422                  * Get the first available counter of the flow rule if
4423                  * counter ID is not specified, provided that this
4424                  * counter is not an automatic (implicit) one.
4425                  */
4426                 if (conf != NULL && action_set->counters[i].rte_id != conf->id)
4427                         continue;
4428
4429                 rc = sfc_mae_counter_get(&sa->mae.counter_registry.counters,
4430                                          &action_set->counters[i], data);
4431                 if (rc != 0) {
4432                         return rte_flow_error_set(error, EINVAL,
4433                                 RTE_FLOW_ERROR_TYPE_ACTION, action,
4434                                 "Queried flow rule counter action is invalid");
4435                 }
4436
4437                 return 0;
4438         }
4439
4440         return rte_flow_error_set(error, ENOENT,
4441                                   RTE_FLOW_ERROR_TYPE_ACTION, action,
4442                                   "no such flow rule action or such count ID");
4443 }
4444
4445 int
4446 sfc_mae_flow_query(struct rte_eth_dev *dev,
4447                    struct rte_flow *flow,
4448                    const struct rte_flow_action *action,
4449                    void *data,
4450                    struct rte_flow_error *error)
4451 {
4452         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
4453         struct sfc_flow_spec *spec = &flow->spec;
4454         struct sfc_flow_spec_mae *spec_mae = &spec->mae;
4455
4456         switch (action->type) {
4457         case RTE_FLOW_ACTION_TYPE_COUNT:
4458                 return sfc_mae_query_counter(sa, spec_mae, action,
4459                                              data, error);
4460         default:
4461                 return rte_flow_error_set(error, ENOTSUP,
4462                         RTE_FLOW_ERROR_TYPE_ACTION, NULL,
4463                         "Query for action of this type is not supported");
4464         }
4465 }
4466
4467 int
4468 sfc_mae_switchdev_init(struct sfc_adapter *sa)
4469 {
4470         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
4471         struct sfc_mae *mae = &sa->mae;
4472         efx_mport_sel_t pf;
4473         efx_mport_sel_t phy;
4474         int rc;
4475
4476         sfc_log_init(sa, "entry");
4477
4478         if (!sa->switchdev) {
4479                 sfc_log_init(sa, "switchdev is not enabled - skip");
4480                 return 0;
4481         }
4482
4483         if (mae->status != SFC_MAE_STATUS_ADMIN) {
4484                 rc = ENOTSUP;
4485                 sfc_err(sa, "failed to init switchdev - no admin MAE privilege");
4486                 goto fail_no_mae;
4487         }
4488
4489         rc = efx_mae_mport_by_pcie_function(encp->enc_pf, EFX_PCI_VF_INVALID,
4490                                             &pf);
4491         if (rc != 0) {
4492                 sfc_err(sa, "failed get PF mport");
4493                 goto fail_pf_get;
4494         }
4495
4496         rc = efx_mae_mport_by_phy_port(encp->enc_assigned_port, &phy);
4497         if (rc != 0) {
4498                 sfc_err(sa, "failed get PHY mport");
4499                 goto fail_phy_get;
4500         }
4501
4502         rc = sfc_mae_rule_add_mport_match_deliver(sa, &pf, &phy,
4503                         SFC_MAE_RULE_PRIO_LOWEST,
4504                         &mae->switchdev_rule_pf_to_ext);
4505         if (rc != 0) {
4506                 sfc_err(sa, "failed add MAE rule to forward from PF to PHY");
4507                 goto fail_pf_add;
4508         }
4509
4510         rc = sfc_mae_rule_add_mport_match_deliver(sa, &phy, &pf,
4511                         SFC_MAE_RULE_PRIO_LOWEST,
4512                         &mae->switchdev_rule_ext_to_pf);
4513         if (rc != 0) {
4514                 sfc_err(sa, "failed add MAE rule to forward from PHY to PF");
4515                 goto fail_phy_add;
4516         }
4517
4518         sfc_log_init(sa, "done");
4519
4520         return 0;
4521
4522 fail_phy_add:
4523         sfc_mae_rule_del(sa, mae->switchdev_rule_pf_to_ext);
4524
4525 fail_pf_add:
4526 fail_phy_get:
4527 fail_pf_get:
4528 fail_no_mae:
4529         sfc_log_init(sa, "failed: %s", rte_strerror(rc));
4530         return rc;
4531 }
4532
4533 void
4534 sfc_mae_switchdev_fini(struct sfc_adapter *sa)
4535 {
4536         struct sfc_mae *mae = &sa->mae;
4537
4538         if (!sa->switchdev)
4539                 return;
4540
4541         sfc_mae_rule_del(sa, mae->switchdev_rule_pf_to_ext);
4542         sfc_mae_rule_del(sa, mae->switchdev_rule_ext_to_pf);
4543 }